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Finding the Fourth Proportional to 458,801.55, 688,202.33 and 126,377.55

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Solution

The fourth proportional to 458,801.55, 688,202.33 and 126,377.55 is: 189,566.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,801.55 : 688,202.33 = 126,377.55 : x
  2. Step 2: Convert to fraction form
    458,801.55/688,202.33 = 126,377.55/x
  3. Step 3: Cross multiply
    458,801.55x = 688,202.33 × 126,377.55
  4. Step 4: Simplify right side
    458,801.55x = 86,973,323,737.80
  5. Step 5: Solve for x
    x = 86,973,323,737.80/458,801.55
  6. Step 6: Final answer
    x = 189,566.33

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Similar ratio
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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.