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Finding the Fourth Proportional to 629,971.80, 944,961.47 and 156,657.17

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Solution

The fourth proportional to 629,971.80, 944,961.47 and 156,657.17 is: 234,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,971.80 : 944,961.47 = 156,657.17 : x
  2. Step 2: Convert to fraction form
    629,971.80/944,961.47 = 156,657.17/x
  3. Step 3: Cross multiply
    629,971.80x = 944,961.47 × 156,657.17
  4. Step 4: Simplify right side
    629,971.80x = 148,034,984,141.15
  5. Step 5: Solve for x
    x = 148,034,984,141.15/629,971.80
  6. Step 6: Final answer
    x = 234,986.68

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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.