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Finding the Fourth Proportional to 236,468.10, 354,702.15 and 78,701.70

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Solution

The fourth proportional to 236,468.10, 354,702.15 and 78,701.70 is: 118,052.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,468.10 : 354,702.15 = 78,701.70 : x
  2. Step 2: Convert to fraction form
    236,468.10/354,702.15 = 78,701.70/x
  3. Step 3: Cross multiply
    236,468.10x = 354,702.15 × 78,701.70
  4. Step 4: Simplify right side
    236,468.10x = 27,915,662,198.66
  5. Step 5: Solve for x
    x = 27,915,662,198.66/236,468.10
  6. Step 6: Final answer
    x = 118,052.55

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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.