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Finding the Fourth Proportional to 440,064.40, 660,031.80 and 124,553.20

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Solution

The fourth proportional to 440,064.40, 660,031.80 and 124,553.20 is: 186,811.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,064.40 : 660,031.80 = 124,553.20 : x
  2. Step 2: Convert to fraction form
    440,064.40/660,031.80 = 124,553.20/x
  3. Step 3: Cross multiply
    440,064.40x = 660,031.80 × 124,553.20
  4. Step 4: Simplify right side
    440,064.40x = 82,209,072,791.76
  5. Step 5: Solve for x
    x = 82,209,072,791.76/440,064.40
  6. Step 6: Final answer
    x = 186,811.46

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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.