Home / 518,211.24-777,159.90-181,189.11

Finding the Fourth Proportional to 518,211.24, 777,159.90 and 181,189.11

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Solution

The fourth proportional to 518,211.24, 777,159.90 and 181,189.11 is: 271,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,211.24 : 777,159.90 = 181,189.11 : x
  2. Step 2: Convert to fraction form
    518,211.24/777,159.90 = 181,189.11/x
  3. Step 3: Cross multiply
    518,211.24x = 777,159.90 × 181,189.11
  4. Step 4: Simplify right side
    518,211.24x = 140,812,910,608.69
  5. Step 5: Solve for x
    x = 140,812,910,608.69/518,211.24
  6. Step 6: Final answer
    x = 271,728.78

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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.