Home / 331,739.12-497,609.21-142,184.65

Finding the Fourth Proportional to 331,739.12, 497,609.21 and 142,184.65

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Solution

The fourth proportional to 331,739.12, 497,609.21 and 142,184.65 is: 213,277.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,739.12 : 497,609.21 = 142,184.65 : x
  2. Step 2: Convert to fraction form
    331,739.12/497,609.21 = 142,184.65/x
  3. Step 3: Cross multiply
    331,739.12x = 497,609.21 × 142,184.65
  4. Step 4: Simplify right side
    331,739.12x = 70,752,393,304.42
  5. Step 5: Solve for x
    x = 70,752,393,304.42/331,739.12
  6. Step 6: Final answer
    x = 213,277.21

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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.