Home / 440,531.72-660,474.36-140,839.82

Finding the Fourth Proportional to 440,531.72, 660,474.36 and 140,839.82

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Solution

The fourth proportional to 440,531.72, 660,474.36 and 140,839.82 is: 211,156.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,531.72 : 660,474.36 = 140,839.82 : x
  2. Step 2: Convert to fraction form
    440,531.72/660,474.36 = 140,839.82/x
  3. Step 3: Cross multiply
    440,531.72x = 660,474.36 × 140,839.82
  4. Step 4: Simplify right side
    440,531.72x = 93,021,086,674.64
  5. Step 5: Solve for x
    x = 93,021,086,674.64/440,531.72
  6. Step 6: Final answer
    x = 211,156.39

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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.