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Finding the Fourth Proportional to 290,454.46, 400,702.82 and 181,369.42

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Solution

The fourth proportional to 290,454.46, 400,702.82 and 181,369.42 is: 250,212.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,454.46 : 400,702.82 = 181,369.42 : x
  2. Step 2: Convert to fraction form
    290,454.46/400,702.82 = 181,369.42/x
  3. Step 3: Cross multiply
    290,454.46x = 400,702.82 × 181,369.42
  4. Step 4: Simplify right side
    290,454.46x = 72,675,236,827.30
  5. Step 5: Solve for x
    x = 72,675,236,827.30/290,454.46
  6. Step 6: Final answer
    x = 250,212.16

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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.