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Finding the Fourth Proportional to 216,454.82, 298,702.08 and 120,962.30

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Solution

The fourth proportional to 216,454.82, 298,702.08 and 120,962.30 is: 166,924.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,454.82 : 298,702.08 = 120,962.30 : x
  2. Step 2: Convert to fraction form
    216,454.82/298,702.08 = 120,962.30/x
  3. Step 3: Cross multiply
    216,454.82x = 298,702.08 × 120,962.30
  4. Step 4: Simplify right side
    216,454.82x = 36,131,690,611.58
  5. Step 5: Solve for x
    x = 36,131,690,611.58/216,454.82
  6. Step 6: Final answer
    x = 166,924.86

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1.5x scale

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.