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Finding the Fourth Proportional to 458,843.82, 688,265.73 and 178,426.68

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Solution

The fourth proportional to 458,843.82, 688,265.73 and 178,426.68 is: 267,640.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,843.82 : 688,265.73 = 178,426.68 : x
  2. Step 2: Convert to fraction form
    458,843.82/688,265.73 = 178,426.68/x
  3. Step 3: Cross multiply
    458,843.82x = 688,265.73 × 178,426.68
  4. Step 4: Simplify right side
    458,843.82x = 122,804,969,161.68
  5. Step 5: Solve for x
    x = 122,804,969,161.68/458,843.82
  6. Step 6: Final answer
    x = 267,640.02

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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.