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Finding the Fourth Proportional to 453,747.84, 680,608.64 and 138,191.36

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Solution

The fourth proportional to 453,747.84, 680,608.64 and 138,191.36 is: 207,283.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,747.84 : 680,608.64 = 138,191.36 : x
  2. Step 2: Convert to fraction form
    453,747.84/680,608.64 = 138,191.36/x
  3. Step 3: Cross multiply
    453,747.84x = 680,608.64 × 138,191.36
  4. Step 4: Simplify right side
    453,747.84x = 94,054,233,589.35
  5. Step 5: Solve for x
    x = 94,054,233,589.35/453,747.84
  6. Step 6: Final answer
    x = 207,283.04

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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.