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Finding the Fourth Proportional to 279,514, 385,736.16 and 152,196.52

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Solution

The fourth proportional to 279,514, 385,736.16 and 152,196.52 is: 210,034.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,514 : 385,736.16 = 152,196.52 : x
  2. Step 2: Convert to fraction form
    279,514/385,736.16 = 152,196.52/x
  3. Step 3: Cross multiply
    279,514x = 385,736.16 × 152,196.52
  4. Step 4: Simplify right side
    279,514x = 58,707,701,190.16
  5. Step 5: Solve for x
    x = 58,707,701,190.16/279,514
  6. Step 6: Final answer
    x = 210,034.92

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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.