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Finding the Fourth Proportional to 645,801.80, 968,177.80 and 225,372.92

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Solution

The fourth proportional to 645,801.80, 968,177.80 and 225,372.92 is: 337,876.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,801.80 : 968,177.80 = 225,372.92 : x
  2. Step 2: Convert to fraction form
    645,801.80/968,177.80 = 225,372.92/x
  3. Step 3: Cross multiply
    645,801.80x = 968,177.80 × 225,372.92
  4. Step 4: Simplify right side
    645,801.80x = 218,201,057,865.18
  5. Step 5: Solve for x
    x = 218,201,057,865.18/645,801.80
  6. Step 6: Final answer
    x = 337,876.20

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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.