Home / 261,590.25-392,389.07-74,601.75

Finding the Fourth Proportional to 261,590.25, 392,389.07 and 74,601.75

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Solution

The fourth proportional to 261,590.25, 392,389.07 and 74,601.75 is: 111,903.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,590.25 : 392,389.07 = 74,601.75 : x
  2. Step 2: Convert to fraction form
    261,590.25/392,389.07 = 74,601.75/x
  3. Step 3: Cross multiply
    261,590.25x = 392,389.07 × 74,601.75
  4. Step 4: Simplify right side
    261,590.25x = 29,272,910,929.86
  5. Step 5: Solve for x
    x = 29,272,910,929.86/261,590.25
  6. Step 6: Final answer
    x = 111,903.68

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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.