Home / 498,328.20-747,370.80-143,305.20

Finding the Fourth Proportional to 498,328.20, 747,370.80 and 143,305.20

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Solution

The fourth proportional to 498,328.20, 747,370.80 and 143,305.20 is: 214,922.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,328.20 : 747,370.80 = 143,305.20 : x
  2. Step 2: Convert to fraction form
    498,328.20/747,370.80 = 143,305.20/x
  3. Step 3: Cross multiply
    498,328.20x = 747,370.80 × 143,305.20
  4. Step 4: Simplify right side
    498,328.20x = 107,102,121,968.16
  5. Step 5: Solve for x
    x = 107,102,121,968.16/498,328.20
  6. Step 6: Final answer
    x = 214,922.86

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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.