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Finding the Fourth Proportional to 280,170.92, 419,638.62 and 231,587.66

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Solution

The fourth proportional to 280,170.92, 419,638.62 and 231,587.66 is: 346,870.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,170.92 : 419,638.62 = 231,587.66 : x
  2. Step 2: Convert to fraction form
    280,170.92/419,638.62 = 231,587.66/x
  3. Step 3: Cross multiply
    280,170.92x = 419,638.62 × 231,587.66
  4. Step 4: Simplify right side
    280,170.92x = 97,183,126,051.43
  5. Step 5: Solve for x
    x = 97,183,126,051.43/280,170.92
  6. Step 6: Final answer
    x = 346,870.85

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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.