Home / 261,565.61-392,352.05-74,577.11

Finding the Fourth Proportional to 261,565.61, 392,352.05 and 74,577.11

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Solution

The fourth proportional to 261,565.61, 392,352.05 and 74,577.11 is: 111,866.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,565.61 : 392,352.05 = 74,577.11 : x
  2. Step 2: Convert to fraction form
    261,565.61/392,352.05 = 74,577.11/x
  3. Step 3: Cross multiply
    261,565.61x = 392,352.05 × 74,577.11
  4. Step 4: Simplify right side
    261,565.61x = 29,260,480,216.26
  5. Step 5: Solve for x
    x = 29,260,480,216.26/261,565.61
  6. Step 6: Final answer
    x = 111,866.70

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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.