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Finding the Fourth Proportional to 194,182.20, 291,282.90 and 100,870.20

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Solution

The fourth proportional to 194,182.20, 291,282.90 and 100,870.20 is: 151,310.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,182.20 : 291,282.90 = 100,870.20 : x
  2. Step 2: Convert to fraction form
    194,182.20/291,282.90 = 100,870.20/x
  3. Step 3: Cross multiply
    194,182.20x = 291,282.90 × 100,870.20
  4. Step 4: Simplify right side
    194,182.20x = 29,381,764,379.58
  5. Step 5: Solve for x
    x = 29,381,764,379.58/194,182.20
  6. Step 6: Final answer
    x = 151,310.29

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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.