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Finding the Fourth Proportional to 538,810.56, 808,215.84 and 239,220.72

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Solution

The fourth proportional to 538,810.56, 808,215.84 and 239,220.72 is: 358,831.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,810.56 : 808,215.84 = 239,220.72 : x
  2. Step 2: Convert to fraction form
    538,810.56/808,215.84 = 239,220.72/x
  3. Step 3: Cross multiply
    538,810.56x = 808,215.84 × 239,220.72
  4. Step 4: Simplify right side
    538,810.56x = 193,341,975,160.21
  5. Step 5: Solve for x
    x = 193,341,975,160.21/538,810.56
  6. Step 6: Final answer
    x = 358,831.08

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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.