Home / 261,459.03-392,253.93-74,470.53

Finding the Fourth Proportional to 261,459.03, 392,253.93 and 74,470.53

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Solution

The fourth proportional to 261,459.03, 392,253.93 and 74,470.53 is: 111,724.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,459.03 : 392,253.93 = 74,470.53 : x
  2. Step 2: Convert to fraction form
    261,459.03/392,253.93 = 74,470.53/x
  3. Step 3: Cross multiply
    261,459.03x = 392,253.93 × 74,470.53
  4. Step 4: Simplify right side
    261,459.03x = 29,211,358,061.68
  5. Step 5: Solve for x
    x = 29,211,358,061.68/261,459.03
  6. Step 6: Final answer
    x = 111,724.42

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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.