Home / 274,428.28-411,637.94-87,437.24

Finding the Fourth Proportional to 274,428.28, 411,637.94 and 87,437.24

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Solution

The fourth proportional to 274,428.28, 411,637.94 and 87,437.24 is: 131,154.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,428.28 : 411,637.94 = 87,437.24 : x
  2. Step 2: Convert to fraction form
    274,428.28/411,637.94 = 87,437.24/x
  3. Step 3: Cross multiply
    274,428.28x = 411,637.94 × 87,437.24
  4. Step 4: Simplify right side
    274,428.28x = 35,992,485,352.89
  5. Step 5: Solve for x
    x = 35,992,485,352.89/274,428.28
  6. Step 6: Final answer
    x = 131,154.43

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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.