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Finding the Fourth Proportional to 281,934.72, 422,901.72 and 68,702.40

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Solution

The fourth proportional to 281,934.72, 422,901.72 and 68,702.40 is: 103,053.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,934.72 : 422,901.72 = 68,702.40 : x
  2. Step 2: Convert to fraction form
    281,934.72/422,901.72 = 68,702.40/x
  3. Step 3: Cross multiply
    281,934.72x = 422,901.72 × 68,702.40
  4. Step 4: Simplify right side
    281,934.72x = 29,054,363,128.13
  5. Step 5: Solve for x
    x = 29,054,363,128.13/281,934.72
  6. Step 6: Final answer
    x = 103,053.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.