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Finding the Fourth Proportional to 398,302.56, 550,194.66 and 369,959.04

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Solution

The fourth proportional to 398,302.56, 550,194.66 and 369,959.04 is: 511,042.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,302.56 : 550,194.66 = 369,959.04 : x
  2. Step 2: Convert to fraction form
    398,302.56/550,194.66 = 369,959.04/x
  3. Step 3: Cross multiply
    398,302.56x = 550,194.66 × 369,959.04
  4. Step 4: Simplify right side
    398,302.56x = 203,549,488,226.73
  5. Step 5: Solve for x
    x = 203,549,488,226.73/398,302.56
  6. Step 6: Final answer
    x = 511,042.38

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1.5x scale

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.