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Finding the Fourth Proportional to 215,000.70, 322,403.85 and 96,611.10

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Solution

The fourth proportional to 215,000.70, 322,403.85 and 96,611.10 is: 144,872.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,000.70 : 322,403.85 = 96,611.10 : x
  2. Step 2: Convert to fraction form
    215,000.70/322,403.85 = 96,611.10/x
  3. Step 3: Cross multiply
    215,000.70x = 322,403.85 × 96,611.10
  4. Step 4: Simplify right side
    215,000.70x = 31,147,790,592.74
  5. Step 5: Solve for x
    x = 31,147,790,592.74/215,000.70
  6. Step 6: Final answer
    x = 144,872.97

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1.5x scale

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.