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Finding the Fourth Proportional to 237,969.71, 356,839.74 and 138,155.03

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Solution

The fourth proportional to 237,969.71, 356,839.74 and 138,155.03 is: 207,165.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,969.71 : 356,839.74 = 138,155.03 : x
  2. Step 2: Convert to fraction form
    237,969.71/356,839.74 = 138,155.03/x
  3. Step 3: Cross multiply
    237,969.71x = 356,839.74 × 138,155.03
  4. Step 4: Simplify right side
    237,969.71x = 49,299,204,984.89
  5. Step 5: Solve for x
    x = 49,299,204,984.89/237,969.71
  6. Step 6: Final answer
    x = 207,165.88

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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.