Home / 261,417.12-392,008.32-74,384.16

Finding the Fourth Proportional to 261,417.12, 392,008.32 and 74,384.16

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Solution

The fourth proportional to 261,417.12, 392,008.32 and 74,384.16 is: 111,542.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,417.12 : 392,008.32 = 74,384.16 : x
  2. Step 2: Convert to fraction form
    261,417.12/392,008.32 = 74,384.16/x
  3. Step 3: Cross multiply
    261,417.12x = 392,008.32 × 74,384.16
  4. Step 4: Simplify right side
    261,417.12x = 29,159,209,596.21
  5. Step 5: Solve for x
    x = 29,159,209,596.21/261,417.12
  6. Step 6: Final answer
    x = 111,542.85

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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.