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Finding the Fourth Proportional to 305,902.69, 458,900.57 and 156,061.15

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Solution

The fourth proportional to 305,902.69, 458,900.57 and 156,061.15 is: 234,115.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,902.69 : 458,900.57 = 156,061.15 : x
  2. Step 2: Convert to fraction form
    305,902.69/458,900.57 = 156,061.15/x
  3. Step 3: Cross multiply
    305,902.69x = 458,900.57 × 156,061.15
  4. Step 4: Simplify right side
    305,902.69x = 71,616,549,932.76
  5. Step 5: Solve for x
    x = 71,616,549,932.76/305,902.69
  6. Step 6: Final answer
    x = 234,115.47

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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.