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Finding the Fourth Proportional to 303,271.31, 418,514.42 and 169,135.31

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Solution

The fourth proportional to 303,271.31, 418,514.42 and 169,135.31 is: 233,406.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,271.31 : 418,514.42 = 169,135.31 : x
  2. Step 2: Convert to fraction form
    303,271.31/418,514.42 = 169,135.31/x
  3. Step 3: Cross multiply
    303,271.31x = 418,514.42 × 169,135.31
  4. Step 4: Simplify right side
    303,271.31x = 70,785,567,635.29
  5. Step 5: Solve for x
    x = 70,785,567,635.29/303,271.31
  6. Step 6: Final answer
    x = 233,406.74

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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.