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Finding the Fourth Proportional to 453,027.80, 679,541.70 and 137,500.40

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Solution

The fourth proportional to 453,027.80, 679,541.70 and 137,500.40 is: 206,250.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,027.80 : 679,541.70 = 137,500.40 : x
  2. Step 2: Convert to fraction form
    453,027.80/679,541.70 = 137,500.40/x
  3. Step 3: Cross multiply
    453,027.80x = 679,541.70 × 137,500.40
  4. Step 4: Simplify right side
    453,027.80x = 93,437,255,566.68
  5. Step 5: Solve for x
    x = 93,437,255,566.68/453,027.80
  6. Step 6: Final answer
    x = 206,250.60

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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.