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Finding the Fourth Proportional to 538,812.56, 808,218.84 and 239,222.72

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Solution

The fourth proportional to 538,812.56, 808,218.84 and 239,222.72 is: 358,834.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,812.56 : 808,218.84 = 239,222.72 : x
  2. Step 2: Convert to fraction form
    538,812.56/808,218.84 = 239,222.72/x
  3. Step 3: Cross multiply
    538,812.56x = 808,218.84 × 239,222.72
  4. Step 4: Simplify right side
    538,812.56x = 193,344,309,260.05
  5. Step 5: Solve for x
    x = 193,344,309,260.05/538,812.56
  6. Step 6: Final answer
    x = 358,834.08

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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.