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Finding the Fourth Proportional to 331,357.60, 497,036.40 and 231,630.40

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Solution

The fourth proportional to 331,357.60, 497,036.40 and 231,630.40 is: 347,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,357.60 : 497,036.40 = 231,630.40 : x
  2. Step 2: Convert to fraction form
    331,357.60/497,036.40 = 231,630.40/x
  3. Step 3: Cross multiply
    331,357.60x = 497,036.40 × 231,630.40
  4. Step 4: Simplify right side
    331,357.60x = 115,128,740,146.56
  5. Step 5: Solve for x
    x = 115,128,740,146.56/331,357.60
  6. Step 6: Final answer
    x = 347,445.60

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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.