Home / 439,514.90-659,477.45-155,420.61

Finding the Fourth Proportional to 439,514.90, 659,477.45 and 155,420.61

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Solution

The fourth proportional to 439,514.90, 659,477.45 and 155,420.61 is: 233,203.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,514.90 : 659,477.45 = 155,420.61 : x
  2. Step 2: Convert to fraction form
    439,514.90/659,477.45 = 155,420.61/x
  3. Step 3: Cross multiply
    439,514.90x = 659,477.45 × 155,420.61
  4. Step 4: Simplify right side
    439,514.90x = 102,496,387,948.80
  5. Step 5: Solve for x
    x = 102,496,387,948.80/439,514.90
  6. Step 6: Final answer
    x = 233,203.44

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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.