Home / 283,117.52-390,693.68-155,793.04

Finding the Fourth Proportional to 283,117.52, 390,693.68 and 155,793.04

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Solution

The fourth proportional to 283,117.52, 390,693.68 and 155,793.04 is: 214,989.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,117.52 : 390,693.68 = 155,793.04 : x
  2. Step 2: Convert to fraction form
    283,117.52/390,693.68 = 155,793.04/x
  3. Step 3: Cross multiply
    283,117.52x = 390,693.68 × 155,793.04
  4. Step 4: Simplify right side
    283,117.52x = 60,867,356,115.99
  5. Step 5: Solve for x
    x = 60,867,356,115.99/283,117.52
  6. Step 6: Final answer
    x = 214,989.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.