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Finding the Fourth Proportional to 445, 614.12 and 248.52

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Solution

The fourth proportional to 445, 614.12 and 248.52 is: 342.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    445 : 614.12 = 248.52 : x
  2. Step 2: Convert to fraction form
    445/614.12 = 248.52/x
  3. Step 3: Cross multiply
    445x = 614.12 × 248.52
  4. Step 4: Simplify right side
    445x = 152,621.10
  5. Step 5: Solve for x
    x = 152,621.10/445
  6. Step 6: Final answer
    x = 342.97

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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.