Home / 439,346.80-658,145.40-252,139.60

Finding the Fourth Proportional to 439,346.80, 658,145.40 and 252,139.60

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Solution

The fourth proportional to 439,346.80, 658,145.40 and 252,139.60 is: 377,707.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,346.80 : 658,145.40 = 252,139.60 : x
  2. Step 2: Convert to fraction form
    439,346.80/658,145.40 = 252,139.60/x
  3. Step 3: Cross multiply
    439,346.80x = 658,145.40 × 252,139.60
  4. Step 4: Simplify right side
    439,346.80x = 165,944,517,897.84
  5. Step 5: Solve for x
    x = 165,944,517,897.84/439,346.80
  6. Step 6: Final answer
    x = 377,707.36

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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.