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Finding the Fourth Proportional to 254,136.32, 380,723.30 and 169,641.72

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Solution

The fourth proportional to 254,136.32, 380,723.30 and 169,641.72 is: 254,141.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,136.32 : 380,723.30 = 169,641.72 : x
  2. Step 2: Convert to fraction form
    254,136.32/380,723.30 = 169,641.72/x
  3. Step 3: Cross multiply
    254,136.32x = 380,723.30 × 169,641.72
  4. Step 4: Simplify right side
    254,136.32x = 64,586,555,456.08
  5. Step 5: Solve for x
    x = 64,586,555,456.08/254,136.32
  6. Step 6: Final answer
    x = 254,141.38

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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.