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Finding the Fourth Proportional to 453,270.70, 679,832.11 and 133,347.73

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Solution

The fourth proportional to 453,270.70, 679,832.11 and 133,347.73 is: 199,999.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,270.70 : 679,832.11 = 133,347.73 : x
  2. Step 2: Convert to fraction form
    453,270.70/679,832.11 = 133,347.73/x
  3. Step 3: Cross multiply
    453,270.70x = 679,832.11 × 133,347.73
  4. Step 4: Simplify right side
    453,270.70x = 90,654,064,583.71
  5. Step 5: Solve for x
    x = 90,654,064,583.71/453,270.70
  6. Step 6: Final answer
    x = 199,999.83

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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.