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Finding the Fourth Proportional to 303,445.32, 418,754.28 and 169,309.32

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Solution

The fourth proportional to 303,445.32, 418,754.28 and 169,309.32 is: 233,646.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,445.32 : 418,754.28 = 169,309.32 : x
  2. Step 2: Convert to fraction form
    303,445.32/418,754.28 = 169,309.32/x
  3. Step 3: Cross multiply
    303,445.32x = 418,754.28 × 169,309.32
  4. Step 4: Simplify right side
    303,445.32x = 70,899,002,393.89
  5. Step 5: Solve for x
    x = 70,899,002,393.89/303,445.32
  6. Step 6: Final answer
    x = 233,646.72

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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.