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Finding the Fourth Proportional to 279,595.87, 385,853.22 and 158,748.41

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Solution

The fourth proportional to 279,595.87, 385,853.22 and 158,748.41 is: 219,079.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,595.87 : 385,853.22 = 158,748.41 : x
  2. Step 2: Convert to fraction form
    279,595.87/385,853.22 = 158,748.41/x
  3. Step 3: Cross multiply
    279,595.87x = 385,853.22 × 158,748.41
  4. Step 4: Simplify right side
    279,595.87x = 61,253,586,133.01
  5. Step 5: Solve for x
    x = 61,253,586,133.01/279,595.87
  6. Step 6: Final answer
    x = 219,079.01

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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.