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Finding the Fourth Proportional to 453,029.72, 679,548.58 and 137,486.57

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Solution

The fourth proportional to 453,029.72, 679,548.58 and 137,486.57 is: 206,231.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,029.72 : 679,548.58 = 137,486.57 : x
  2. Step 2: Convert to fraction form
    453,029.72/679,548.58 = 137,486.57/x
  3. Step 3: Cross multiply
    453,029.72x = 679,548.58 × 137,486.57
  4. Step 4: Simplify right side
    453,029.72x = 93,428,799,671.11
  5. Step 5: Solve for x
    x = 93,428,799,671.11/453,029.72
  6. Step 6: Final answer
    x = 206,231.06

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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.