Home / 345,557.16-518,121.90-134,947.44

Finding the Fourth Proportional to 345,557.16, 518,121.90 and 134,947.44

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Solution

The fourth proportional to 345,557.16, 518,121.90 and 134,947.44 is: 202,337.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,557.16 : 518,121.90 = 134,947.44 : x
  2. Step 2: Convert to fraction form
    345,557.16/518,121.90 = 134,947.44/x
  3. Step 3: Cross multiply
    345,557.16x = 518,121.90 × 134,947.44
  4. Step 4: Simplify right side
    345,557.16x = 69,919,223,338.20
  5. Step 5: Solve for x
    x = 69,919,223,338.20/345,557.16
  6. Step 6: Final answer
    x = 202,337.65

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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.