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Finding the Fourth Proportional to 453,919, 680,817.20 and 187,642.58

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Solution

The fourth proportional to 453,919, 680,817.20 and 187,642.58 is: 281,438.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,919 : 680,817.20 = 187,642.58 : x
  2. Step 2: Convert to fraction form
    453,919/680,817.20 = 187,642.58/x
  3. Step 3: Cross multiply
    453,919x = 680,817.20 × 187,642.58
  4. Step 4: Simplify right side
    453,919x = 127,750,295,916.38
  5. Step 5: Solve for x
    x = 127,750,295,916.38/453,919
  6. Step 6: Final answer
    x = 281,438.53

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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.