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Finding the Fourth Proportional to 453,330, 679,990.95 and 169,010.89

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Solution

The fourth proportional to 453,330, 679,990.95 and 169,010.89 is: 253,514.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,330 : 679,990.95 = 169,010.89 : x
  2. Step 2: Convert to fraction form
    453,330/679,990.95 = 169,010.89/x
  3. Step 3: Cross multiply
    453,330x = 679,990.95 × 169,010.89
  4. Step 4: Simplify right side
    453,330x = 114,925,873,951.47
  5. Step 5: Solve for x
    x = 114,925,873,951.47/453,330
  6. Step 6: Final answer
    x = 253,514.82

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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.