Home / 261,228.21-391,819.71-185,011.65

Finding the Fourth Proportional to 261,228.21, 391,819.71 and 185,011.65

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Solution

The fourth proportional to 261,228.21, 391,819.71 and 185,011.65 is: 277,501.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,228.21 : 391,819.71 = 185,011.65 : x
  2. Step 2: Convert to fraction form
    261,228.21/391,819.71 = 185,011.65/x
  3. Step 3: Cross multiply
    261,228.21x = 391,819.71 × 185,011.65
  4. Step 4: Simplify right side
    261,228.21x = 72,491,211,049.62
  5. Step 5: Solve for x
    x = 72,491,211,049.62/261,228.21
  6. Step 6: Final answer
    x = 277,501.47

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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.