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Finding the Fourth Proportional to 453,011.75, 679,519.44 and 137,471.39

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Solution

The fourth proportional to 453,011.75, 679,519.44 and 137,471.39 is: 206,207.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,011.75 : 679,519.44 = 137,471.39 : x
  2. Step 2: Convert to fraction form
    453,011.75/679,519.44 = 137,471.39/x
  3. Step 3: Cross multiply
    453,011.75x = 679,519.44 × 137,471.39
  4. Step 4: Simplify right side
    453,011.75x = 93,414,478,551.22
  5. Step 5: Solve for x
    x = 93,414,478,551.22/453,011.75
  6. Step 6: Final answer
    x = 206,207.63

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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.