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Finding the Fourth Proportional to 279,614.92, 385,873.08 and 152,290.52

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Solution

The fourth proportional to 279,614.92, 385,873.08 and 152,290.52 is: 210,163.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,614.92 : 385,873.08 = 152,290.52 : x
  2. Step 2: Convert to fraction form
    279,614.92/385,873.08 = 152,290.52/x
  3. Step 3: Cross multiply
    279,614.92x = 385,873.08 × 152,290.52
  4. Step 4: Simplify right side
    279,614.92x = 58,764,812,007.20
  5. Step 5: Solve for x
    x = 58,764,812,007.20/279,614.92
  6. Step 6: Final answer
    x = 210,163.36

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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.