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Finding the Fourth Proportional to 439,437.80, 659,027.10 and 173,109.80

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Solution

The fourth proportional to 439,437.80, 659,027.10 and 173,109.80 is: 259,613.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,437.80 : 659,027.10 = 173,109.80 : x
  2. Step 2: Convert to fraction form
    439,437.80/659,027.10 = 173,109.80/x
  3. Step 3: Cross multiply
    439,437.80x = 659,027.10 × 173,109.80
  4. Step 4: Simplify right side
    439,437.80x = 114,084,049,475.58
  5. Step 5: Solve for x
    x = 114,084,049,475.58/439,437.80
  6. Step 6: Final answer
    x = 259,613.65

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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.