Home / 355,275.20-490,265.16-194,135.72

Finding the Fourth Proportional to 355,275.20, 490,265.16 and 194,135.72

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Solution

The fourth proportional to 355,275.20, 490,265.16 and 194,135.72 is: 267,899.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,275.20 : 490,265.16 = 194,135.72 : x
  2. Step 2: Convert to fraction form
    355,275.20/490,265.16 = 194,135.72/x
  3. Step 3: Cross multiply
    355,275.20x = 490,265.16 × 194,135.72
  4. Step 4: Simplify right side
    355,275.20x = 95,177,979,827.52
  5. Step 5: Solve for x
    x = 95,177,979,827.52/355,275.20
  6. Step 6: Final answer
    x = 267,899.31

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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.