Home / 283,805.28-391,653.96-156,485.40

Finding the Fourth Proportional to 283,805.28, 391,653.96 and 156,485.40

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Solution

The fourth proportional to 283,805.28, 391,653.96 and 156,485.40 is: 215,951.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,805.28 : 391,653.96 = 156,485.40 : x
  2. Step 2: Convert to fraction form
    283,805.28/391,653.96 = 156,485.40/x
  3. Step 3: Cross multiply
    283,805.28x = 391,653.96 × 156,485.40
  4. Step 4: Simplify right side
    283,805.28x = 61,288,126,592.18
  5. Step 5: Solve for x
    x = 61,288,126,592.18/283,805.28
  6. Step 6: Final answer
    x = 215,951.33

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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.