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Finding the Fourth Proportional to 298,085.60, 447,565.80 and 179,987.60

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Solution

The fourth proportional to 298,085.60, 447,565.80 and 179,987.60 is: 270,245.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,085.60 : 447,565.80 = 179,987.60 : x
  2. Step 2: Convert to fraction form
    298,085.60/447,565.80 = 179,987.60/x
  3. Step 3: Cross multiply
    298,085.60x = 447,565.80 × 179,987.60
  4. Step 4: Simplify right side
    298,085.60x = 80,556,294,184.08
  5. Step 5: Solve for x
    x = 80,556,294,184.08/298,085.60
  6. Step 6: Final answer
    x = 270,245.51

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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.