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Finding the Fourth Proportional to 453,119.88, 679,635.84 and 137,579.52

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Solution

The fourth proportional to 453,119.88, 679,635.84 and 137,579.52 is: 206,355.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,119.88 : 679,635.84 = 137,579.52 : x
  2. Step 2: Convert to fraction form
    453,119.88/679,635.84 = 137,579.52/x
  3. Step 3: Cross multiply
    453,119.88x = 679,635.84 × 137,579.52
  4. Step 4: Simplify right side
    453,119.88x = 93,503,972,642.00
  5. Step 5: Solve for x
    x = 93,503,972,642.00/453,119.88
  6. Step 6: Final answer
    x = 206,355.93

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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.