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Finding the Fourth Proportional to 279,124.92, 385,176.60 and 151,800.48

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Solution

The fourth proportional to 279,124.92, 385,176.60 and 151,800.48 is: 209,476.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,124.92 : 385,176.60 = 151,800.48 : x
  2. Step 2: Convert to fraction form
    279,124.92/385,176.60 = 151,800.48/x
  3. Step 3: Cross multiply
    279,124.92x = 385,176.60 × 151,800.48
  4. Step 4: Simplify right side
    279,124.92x = 58,469,992,764.77
  5. Step 5: Solve for x
    x = 58,469,992,764.77/279,124.92
  6. Step 6: Final answer
    x = 209,476.08

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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.