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Finding the Fourth Proportional to 331,162.60, 497,627.10 and 290,020.20

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Solution

The fourth proportional to 331,162.60, 497,627.10 and 290,020.20 is: 435,803.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,162.60 : 497,627.10 = 290,020.20 : x
  2. Step 2: Convert to fraction form
    331,162.60/497,627.10 = 290,020.20/x
  3. Step 3: Cross multiply
    331,162.60x = 497,627.10 × 290,020.20
  4. Step 4: Simplify right side
    331,162.60x = 144,321,911,067.42
  5. Step 5: Solve for x
    x = 144,321,911,067.42/331,162.60
  6. Step 6: Final answer
    x = 435,803.77

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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.