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Finding the Fourth Proportional to 331,340.90, 497,076.15 and 131,627.30

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Solution

The fourth proportional to 331,340.90, 497,076.15 and 131,627.30 is: 197,466.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,340.90 : 497,076.15 = 131,627.30 : x
  2. Step 2: Convert to fraction form
    331,340.90/497,076.15 = 131,627.30/x
  3. Step 3: Cross multiply
    331,340.90x = 497,076.15 × 131,627.30
  4. Step 4: Simplify right side
    331,340.90x = 65,428,791,518.90
  5. Step 5: Solve for x
    x = 65,428,791,518.90/331,340.90
  6. Step 6: Final answer
    x = 197,466.69

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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.