Home / 498,302.20-747,331.80-143,279.20

Finding the Fourth Proportional to 498,302.20, 747,331.80 and 143,279.20

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Solution

The fourth proportional to 498,302.20, 747,331.80 and 143,279.20 is: 214,883.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,302.20 : 747,331.80 = 143,279.20 : x
  2. Step 2: Convert to fraction form
    498,302.20/747,331.80 = 143,279.20/x
  3. Step 3: Cross multiply
    498,302.20x = 747,331.80 × 143,279.20
  4. Step 4: Simplify right side
    498,302.20x = 107,077,102,438.56
  5. Step 5: Solve for x
    x = 107,077,102,438.56/498,302.20
  6. Step 6: Final answer
    x = 214,883.86

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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.