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Finding the Fourth Proportional to 453,890.66, 680,638.95 and 154,290.69

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Solution

The fourth proportional to 453,890.66, 680,638.95 and 154,290.69 is: 231,369.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,890.66 : 680,638.95 = 154,290.69 : x
  2. Step 2: Convert to fraction form
    453,890.66/680,638.95 = 154,290.69/x
  3. Step 3: Cross multiply
    453,890.66x = 680,638.95 × 154,290.69
  4. Step 4: Simplify right side
    453,890.66x = 105,016,253,236.38
  5. Step 5: Solve for x
    x = 105,016,253,236.38/453,890.66
  6. Step 6: Final answer
    x = 231,369.06

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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.