Home / 326,515.20-490,034.88-168,789.60

Finding the Fourth Proportional to 326,515.20, 490,034.88 and 168,789.60

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Solution

The fourth proportional to 326,515.20, 490,034.88 and 168,789.60 is: 253,319.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,515.20 : 490,034.88 = 168,789.60 : x
  2. Step 2: Convert to fraction form
    326,515.20/490,034.88 = 168,789.60/x
  3. Step 3: Cross multiply
    326,515.20x = 490,034.88 × 168,789.60
  4. Step 4: Simplify right side
    326,515.20x = 82,712,791,381.25
  5. Step 5: Solve for x
    x = 82,712,791,381.25/326,515.20
  6. Step 6: Final answer
    x = 253,319.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.