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Finding the Fourth Proportional to 230,215.68, 343,979.52 and 169,989.12

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Solution

The fourth proportional to 230,215.68, 343,979.52 and 169,989.12 is: 253,991.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,215.68 : 343,979.52 = 169,989.12 : x
  2. Step 2: Convert to fraction form
    230,215.68/343,979.52 = 169,989.12/x
  3. Step 3: Cross multiply
    230,215.68x = 343,979.52 × 169,989.12
  4. Step 4: Simplify right side
    230,215.68x = 58,472,775,902.82
  5. Step 5: Solve for x
    x = 58,472,775,902.82/230,215.68
  6. Step 6: Final answer
    x = 253,991.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.