Home / 345,350.46-518,091.30-120,774.72

Finding the Fourth Proportional to 345,350.46, 518,091.30 and 120,774.72

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Solution

The fourth proportional to 345,350.46, 518,091.30 and 120,774.72 is: 181,185.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,350.46 : 518,091.30 = 120,774.72 : x
  2. Step 2: Convert to fraction form
    345,350.46/518,091.30 = 120,774.72/x
  3. Step 3: Cross multiply
    345,350.46x = 518,091.30 × 120,774.72
  4. Step 4: Simplify right side
    345,350.46x = 62,572,331,691.94
  5. Step 5: Solve for x
    x = 62,572,331,691.94/345,350.46
  6. Step 6: Final answer
    x = 181,185.02

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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.