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Finding the Fourth Proportional to 279,794.14, 386,115.24 and 152,469.52

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Solution

The fourth proportional to 279,794.14, 386,115.24 and 152,469.52 is: 210,407.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,794.14 : 386,115.24 = 152,469.52 : x
  2. Step 2: Convert to fraction form
    279,794.14/386,115.24 = 152,469.52/x
  3. Step 3: Cross multiply
    279,794.14x = 386,115.24 × 152,469.52
  4. Step 4: Simplify right side
    279,794.14x = 58,870,805,307.48
  5. Step 5: Solve for x
    x = 58,870,805,307.48/279,794.14
  6. Step 6: Final answer
    x = 210,407.57

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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.