Home / 345,132.28-517,934.85-120,492.73

Finding the Fourth Proportional to 345,132.28, 517,934.85 and 120,492.73

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Solution

The fourth proportional to 345,132.28, 517,934.85 and 120,492.73 is: 180,821.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,132.28 : 517,934.85 = 120,492.73 : x
  2. Step 2: Convert to fraction form
    345,132.28/517,934.85 = 120,492.73/x
  3. Step 3: Cross multiply
    345,132.28x = 517,934.85 × 120,492.73
  4. Step 4: Simplify right side
    345,132.28x = 62,407,384,038.64
  5. Step 5: Solve for x
    x = 62,407,384,038.64/345,132.28
  6. Step 6: Final answer
    x = 180,821.64

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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.