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Finding the Fourth Proportional to 361,198.08, 498,788.40 and 270,396.40

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Solution

The fourth proportional to 361,198.08, 498,788.40 and 270,396.40 is: 373,397.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,198.08 : 498,788.40 = 270,396.40 : x
  2. Step 2: Convert to fraction form
    361,198.08/498,788.40 = 270,396.40/x
  3. Step 3: Cross multiply
    361,198.08x = 498,788.40 × 270,396.40
  4. Step 4: Simplify right side
    361,198.08x = 134,870,587,721.76
  5. Step 5: Solve for x
    x = 134,870,587,721.76/361,198.08
  6. Step 6: Final answer
    x = 373,397.85

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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.