Home / 261,338.20-392,204.58-191,398.84

Finding the Fourth Proportional to 261,338.20, 392,204.58 and 191,398.84

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Solution

The fourth proportional to 261,338.20, 392,204.58 and 191,398.84 is: 287,242.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,338.20 : 392,204.58 = 191,398.84 : x
  2. Step 2: Convert to fraction form
    261,338.20/392,204.58 = 191,398.84/x
  3. Step 3: Cross multiply
    261,338.20x = 392,204.58 × 191,398.84
  4. Step 4: Simplify right side
    261,338.20x = 75,067,501,654.69
  5. Step 5: Solve for x
    x = 75,067,501,654.69/261,338.20
  6. Step 6: Final answer
    x = 287,242.74

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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.