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Finding the Fourth Proportional to 290,348.71, 400,644.06 and 169,462.27

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Solution

The fourth proportional to 290,348.71, 400,644.06 and 169,462.27 is: 233,836.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,348.71 : 400,644.06 = 169,462.27 : x
  2. Step 2: Convert to fraction form
    290,348.71/400,644.06 = 169,462.27/x
  3. Step 3: Cross multiply
    290,348.71x = 400,644.06 × 169,462.27
  4. Step 4: Simplify right side
    290,348.71x = 67,894,051,869.62
  5. Step 5: Solve for x
    x = 67,894,051,869.62/290,348.71
  6. Step 6: Final answer
    x = 233,836.24

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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.