Home / 658,120.72-987,181.08-178,348.50

Finding the Fourth Proportional to 658,120.72, 987,181.08 and 178,348.50

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Solution

The fourth proportional to 658,120.72, 987,181.08 and 178,348.50 is: 267,522.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,120.72 : 987,181.08 = 178,348.50 : x
  2. Step 2: Convert to fraction form
    658,120.72/987,181.08 = 178,348.50/x
  3. Step 3: Cross multiply
    658,120.72x = 987,181.08 × 178,348.50
  4. Step 4: Simplify right side
    658,120.72x = 176,062,264,846.38
  5. Step 5: Solve for x
    x = 176,062,264,846.38/658,120.72
  6. Step 6: Final answer
    x = 267,522.75

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Double scale
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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.