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Finding the Fourth Proportional to 458,690.24, 688,078.80 and 178,229.12

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Solution

The fourth proportional to 458,690.24, 688,078.80 and 178,229.12 is: 267,360.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,690.24 : 688,078.80 = 178,229.12 : x
  2. Step 2: Convert to fraction form
    458,690.24/688,078.80 = 178,229.12/x
  3. Step 3: Cross multiply
    458,690.24x = 688,078.80 × 178,229.12
  4. Step 4: Simplify right side
    458,690.24x = 122,635,679,014.66
  5. Step 5: Solve for x
    x = 122,635,679,014.66/458,690.24
  6. Step 6: Final answer
    x = 267,360.56

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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.