Home / 498,211.11-747,178.29-138,299.22

Finding the Fourth Proportional to 498,211.11, 747,178.29 and 138,299.22

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Solution

The fourth proportional to 498,211.11, 747,178.29 and 138,299.22 is: 207,410.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,211.11 : 747,178.29 = 138,299.22 : x
  2. Step 2: Convert to fraction form
    498,211.11/747,178.29 = 138,299.22/x
  3. Step 3: Cross multiply
    498,211.11x = 747,178.29 × 138,299.22
  4. Step 4: Simplify right side
    498,211.11x = 103,334,174,707.93
  5. Step 5: Solve for x
    x = 103,334,174,707.93/498,211.11
  6. Step 6: Final answer
    x = 207,410.42

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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.