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Finding the Fourth Proportional to 288,545.17, 432,850.56 and 99,019.75

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Solution

The fourth proportional to 288,545.17, 432,850.56 and 99,019.75 is: 148,540.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,545.17 : 432,850.56 = 99,019.75 : x
  2. Step 2: Convert to fraction form
    288,545.17/432,850.56 = 99,019.75/x
  3. Step 3: Cross multiply
    288,545.17x = 432,850.56 × 99,019.75
  4. Step 4: Simplify right side
    288,545.17x = 42,860,754,238.56
  5. Step 5: Solve for x
    x = 42,860,754,238.56/288,545.17
  6. Step 6: Final answer
    x = 148,540.88

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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.