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Finding the Fourth Proportional to 439,952.40, 660,147.30 and 173,721.60

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Solution

The fourth proportional to 439,952.40, 660,147.30 and 173,721.60 is: 260,668.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,952.40 : 660,147.30 = 173,721.60 : x
  2. Step 2: Convert to fraction form
    439,952.40/660,147.30 = 173,721.60/x
  3. Step 3: Cross multiply
    439,952.40x = 660,147.30 × 173,721.60
  4. Step 4: Simplify right side
    439,952.40x = 114,681,845,191.68
  5. Step 5: Solve for x
    x = 114,681,845,191.68/439,952.40
  6. Step 6: Final answer
    x = 260,668.76

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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.