Home / 286,145.10-394,915.23-158,861.70

Finding the Fourth Proportional to 286,145.10, 394,915.23 and 158,861.70

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Solution

The fourth proportional to 286,145.10, 394,915.23 and 158,861.70 is: 219,248.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,145.10 : 394,915.23 = 158,861.70 : x
  2. Step 2: Convert to fraction form
    286,145.10/394,915.23 = 158,861.70/x
  3. Step 3: Cross multiply
    286,145.10x = 394,915.23 × 158,861.70
  4. Step 4: Simplify right side
    286,145.10x = 62,736,904,793.69
  5. Step 5: Solve for x
    x = 62,736,904,793.69/286,145.10
  6. Step 6: Final answer
    x = 219,248.57

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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.