Home / 283,604.56-391,382.67-156,288.40

Finding the Fourth Proportional to 283,604.56, 391,382.67 and 156,288.40

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Solution

The fourth proportional to 283,604.56, 391,382.67 and 156,288.40 is: 215,682.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,604.56 : 391,382.67 = 156,288.40 : x
  2. Step 2: Convert to fraction form
    283,604.56/391,382.67 = 156,288.40/x
  3. Step 3: Cross multiply
    283,604.56x = 391,382.67 × 156,288.40
  4. Step 4: Simplify right side
    283,604.56x = 61,168,571,282.03
  5. Step 5: Solve for x
    x = 61,168,571,282.03/283,604.56
  6. Step 6: Final answer
    x = 215,682.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.