Home / 283,608.37-391,382.19-156,288.52

Finding the Fourth Proportional to 283,608.37, 391,382.19 and 156,288.52

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Solution

The fourth proportional to 283,608.37, 391,382.19 and 156,288.52 is: 215,679.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,608.37 : 391,382.19 = 156,288.52 : x
  2. Step 2: Convert to fraction form
    283,608.37/391,382.19 = 156,288.52/x
  3. Step 3: Cross multiply
    283,608.37x = 391,382.19 × 156,288.52
  4. Step 4: Simplify right side
    283,608.37x = 61,168,543,229.46
  5. Step 5: Solve for x
    x = 61,168,543,229.46/283,608.37
  6. Step 6: Final answer
    x = 215,679.61

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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.