Home / 331,585.12-497,432.79-131,907.43

Finding the Fourth Proportional to 331,585.12, 497,432.79 and 131,907.43

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Solution

The fourth proportional to 331,585.12, 497,432.79 and 131,907.43 is: 197,883.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,585.12 : 497,432.79 = 131,907.43 : x
  2. Step 2: Convert to fraction form
    331,585.12/497,432.79 = 131,907.43/x
  3. Step 3: Cross multiply
    331,585.12x = 497,432.79 × 131,907.43
  4. Step 4: Simplify right side
    331,585.12x = 65,615,080,926.63
  5. Step 5: Solve for x
    x = 65,615,080,926.63/331,585.12
  6. Step 6: Final answer
    x = 197,883.07

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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.