Home / 439,020.52-658,461.82-139,461.64

Finding the Fourth Proportional to 439,020.52, 658,461.82 and 139,461.64

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Solution

The fourth proportional to 439,020.52, 658,461.82 and 139,461.64 is: 209,170.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,020.52 : 658,461.82 = 139,461.64 : x
  2. Step 2: Convert to fraction form
    439,020.52/658,461.82 = 139,461.64/x
  3. Step 3: Cross multiply
    439,020.52x = 658,461.82 × 139,461.64
  4. Step 4: Simplify right side
    439,020.52x = 91,830,165,294.58
  5. Step 5: Solve for x
    x = 91,830,165,294.58/439,020.52
  6. Step 6: Final answer
    x = 209,170.55

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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.