Home / 283,965.20-425,947.80-84,316.40

Finding the Fourth Proportional to 283,965.20, 425,947.80 and 84,316.40

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Solution

The fourth proportional to 283,965.20, 425,947.80 and 84,316.40 is: 126,474.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,965.20 : 425,947.80 = 84,316.40 : x
  2. Step 2: Convert to fraction form
    283,965.20/425,947.80 = 84,316.40/x
  3. Step 3: Cross multiply
    283,965.20x = 425,947.80 × 84,316.40
  4. Step 4: Simplify right side
    283,965.20x = 35,914,385,083.92
  5. Step 5: Solve for x
    x = 35,914,385,083.92/283,965.20
  6. Step 6: Final answer
    x = 126,474.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.