Home / 283,743.32-391,568.40-156,423.47

Finding the Fourth Proportional to 283,743.32, 391,568.40 and 156,423.47

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Solution

The fourth proportional to 283,743.32, 391,568.40 and 156,423.47 is: 215,865.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,743.32 : 391,568.40 = 156,423.47 : x
  2. Step 2: Convert to fraction form
    283,743.32/391,568.40 = 156,423.47/x
  3. Step 3: Cross multiply
    283,743.32x = 391,568.40 × 156,423.47
  4. Step 4: Simplify right side
    283,743.32x = 61,250,485,912.51
  5. Step 5: Solve for x
    x = 61,250,485,912.51/283,743.32
  6. Step 6: Final answer
    x = 215,865.83

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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.