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Finding the Fourth Proportional to 372,182.91, 513,446.61 and 248,031.78

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Solution

The fourth proportional to 372,182.91, 513,446.61 and 248,031.78 is: 342,173.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,182.91 : 513,446.61 = 248,031.78 : x
  2. Step 2: Convert to fraction form
    372,182.91/513,446.61 = 248,031.78/x
  3. Step 3: Cross multiply
    372,182.91x = 513,446.61 × 248,031.78
  4. Step 4: Simplify right side
    372,182.91x = 127,351,076,613.27
  5. Step 5: Solve for x
    x = 127,351,076,613.27/372,182.91
  6. Step 6: Final answer
    x = 342,173.36

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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.