Home / 283,606.56-391,385.52-156,290.40

Finding the Fourth Proportional to 283,606.56, 391,385.52 and 156,290.40

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Solution

The fourth proportional to 283,606.56, 391,385.52 and 156,290.40 is: 215,685.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,606.56 : 391,385.52 = 156,290.40 : x
  2. Step 2: Convert to fraction form
    283,606.56/391,385.52 = 156,290.40/x
  3. Step 3: Cross multiply
    283,606.56x = 391,385.52 × 156,290.40
  4. Step 4: Simplify right side
    283,606.56x = 61,169,799,475.01
  5. Step 5: Solve for x
    x = 61,169,799,475.01/283,606.56
  6. Step 6: Final answer
    x = 215,685.42

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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.