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Finding the Fourth Proportional to 248,759.57, 343,288.32 and 141,329.78

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Solution

The fourth proportional to 248,759.57, 343,288.32 and 141,329.78 is: 195,035.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,759.57 : 343,288.32 = 141,329.78 : x
  2. Step 2: Convert to fraction form
    248,759.57/343,288.32 = 141,329.78/x
  3. Step 3: Cross multiply
    248,759.57x = 343,288.32 × 141,329.78
  4. Step 4: Simplify right side
    248,759.57x = 48,516,862,742.17
  5. Step 5: Solve for x
    x = 48,516,862,742.17/248,759.57
  6. Step 6: Final answer
    x = 195,035.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.