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Finding the Fourth Proportional to 345,737.43, 477,207.99 and 225,209.43

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Solution

The fourth proportional to 345,737.43, 477,207.99 and 225,209.43 is: 310,847.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,737.43 : 477,207.99 = 225,209.43 : x
  2. Step 2: Convert to fraction form
    345,737.43/477,207.99 = 225,209.43/x
  3. Step 3: Cross multiply
    345,737.43x = 477,207.99 × 225,209.43
  4. Step 4: Simplify right side
    345,737.43x = 107,471,739,419.35
  5. Step 5: Solve for x
    x = 107,471,739,419.35/345,737.43
  6. Step 6: Final answer
    x = 310,847.86

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1.5x scale

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.