Home / 231,115.20-346,672.80-193,790.40

Finding the Fourth Proportional to 231,115.20, 346,672.80 and 193,790.40

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Solution

The fourth proportional to 231,115.20, 346,672.80 and 193,790.40 is: 290,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,115.20 : 346,672.80 = 193,790.40 : x
  2. Step 2: Convert to fraction form
    231,115.20/346,672.80 = 193,790.40/x
  3. Step 3: Cross multiply
    231,115.20x = 346,672.80 × 193,790.40
  4. Step 4: Simplify right side
    231,115.20x = 67,181,860,581.12
  5. Step 5: Solve for x
    x = 67,181,860,581.12/231,115.20
  6. Step 6: Final answer
    x = 290,685.60

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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.