Home / 498,204.06-747,431.25-143,218.72

Finding the Fourth Proportional to 498,204.06, 747,431.25 and 143,218.72

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Solution

The fourth proportional to 498,204.06, 747,431.25 and 143,218.72 is: 214,864.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,204.06 : 747,431.25 = 143,218.72 : x
  2. Step 2: Convert to fraction form
    498,204.06/747,431.25 = 143,218.72/x
  3. Step 3: Cross multiply
    498,204.06x = 747,431.25 × 143,218.72
  4. Step 4: Simplify right side
    498,204.06x = 107,046,146,913
  5. Step 5: Solve for x
    x = 107,046,146,913/498,204.06
  6. Step 6: Final answer
    x = 214,864.06

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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.