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Finding the Fourth Proportional to 453,043.72, 679,569.60 and 137,500.57

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Solution

The fourth proportional to 453,043.72, 679,569.60 and 137,500.57 is: 206,252.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,043.72 : 679,569.60 = 137,500.57 : x
  2. Step 2: Convert to fraction form
    453,043.72/679,569.60 = 137,500.57/x
  3. Step 3: Cross multiply
    453,043.72x = 679,569.60 × 137,500.57
  4. Step 4: Simplify right side
    453,043.72x = 93,441,203,956.82
  5. Step 5: Solve for x
    x = 93,441,203,956.82/453,043.72
  6. Step 6: Final answer
    x = 206,252.07

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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.