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Finding the Fourth Proportional to 331,451.40, 497,177.10 and 238,830.60

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Solution

The fourth proportional to 331,451.40, 497,177.10 and 238,830.60 is: 358,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,451.40 : 497,177.10 = 238,830.60 : x
  2. Step 2: Convert to fraction form
    331,451.40/497,177.10 = 238,830.60/x
  3. Step 3: Cross multiply
    331,451.40x = 497,177.10 × 238,830.60
  4. Step 4: Simplify right side
    331,451.40x = 118,741,105,099.26
  5. Step 5: Solve for x
    x = 118,741,105,099.26/331,451.40
  6. Step 6: Final answer
    x = 358,245.90

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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.