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Finding the Fourth Proportional to 279,612, 385,901.01 and 166,434.75

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Solution

The fourth proportional to 279,612, 385,901.01 and 166,434.75 is: 229,701.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,612 : 385,901.01 = 166,434.75 : x
  2. Step 2: Convert to fraction form
    279,612/385,901.01 = 166,434.75/x
  3. Step 3: Cross multiply
    279,612x = 385,901.01 × 166,434.75
  4. Step 4: Simplify right side
    279,612x = 64,227,338,124.10
  5. Step 5: Solve for x
    x = 64,227,338,124.10/279,612
  6. Step 6: Final answer
    x = 229,701.65

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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.