Home / 261,421.56-391,370.58-194,251.32

Finding the Fourth Proportional to 261,421.56, 391,370.58 and 194,251.32

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Solution

The fourth proportional to 261,421.56, 391,370.58 and 194,251.32 is: 290,810.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,421.56 : 391,370.58 = 194,251.32 : x
  2. Step 2: Convert to fraction form
    261,421.56/391,370.58 = 194,251.32/x
  3. Step 3: Cross multiply
    261,421.56x = 391,370.58 × 194,251.32
  4. Step 4: Simplify right side
    261,421.56x = 76,024,251,774.17
  5. Step 5: Solve for x
    x = 76,024,251,774.17/261,421.56
  6. Step 6: Final answer
    x = 290,810.95

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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.