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Finding the Fourth Proportional to 538,818.81, 808,228.22 and 239,228.97

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Solution

The fourth proportional to 538,818.81, 808,228.22 and 239,228.97 is: 358,843.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,818.81 : 808,228.22 = 239,228.97 : x
  2. Step 2: Convert to fraction form
    538,818.81/808,228.22 = 239,228.97/x
  3. Step 3: Cross multiply
    538,818.81x = 808,228.22 × 239,228.97
  4. Step 4: Simplify right side
    538,818.81x = 193,351,603,399.39
  5. Step 5: Solve for x
    x = 193,351,603,399.39/538,818.81
  6. Step 6: Final answer
    x = 358,843.46

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.