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Finding the Fourth Proportional to 485,067.39, 669,349.58 and 270,202.84

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Solution

The fourth proportional to 485,067.39, 669,349.58 and 270,202.84 is: 372,855.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,067.39 : 669,349.58 = 270,202.84 : x
  2. Step 2: Convert to fraction form
    485,067.39/669,349.58 = 270,202.84/x
  3. Step 3: Cross multiply
    485,067.39x = 669,349.58 × 270,202.84
  4. Step 4: Simplify right side
    485,067.39x = 180,860,154,444.42
  5. Step 5: Solve for x
    x = 180,860,154,444.42/485,067.39
  6. Step 6: Final answer
    x = 372,855.73

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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.