Home / 261,488.10-392,224.05-74,499.60

Finding the Fourth Proportional to 261,488.10, 392,224.05 and 74,499.60

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Solution

The fourth proportional to 261,488.10, 392,224.05 and 74,499.60 is: 111,747.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,488.10 : 392,224.05 = 74,499.60 : x
  2. Step 2: Convert to fraction form
    261,488.10/392,224.05 = 74,499.60/x
  3. Step 3: Cross multiply
    261,488.10x = 392,224.05 × 74,499.60
  4. Step 4: Simplify right side
    261,488.10x = 29,220,534,835.38
  5. Step 5: Solve for x
    x = 29,220,534,835.38/261,488.10
  6. Step 6: Final answer
    x = 111,747.09

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1.5x scale

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.