Home / 283,876.12-391,744.36-156,563.56

Finding the Fourth Proportional to 283,876.12, 391,744.36 and 156,563.56

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Solution

The fourth proportional to 283,876.12, 391,744.36 and 156,563.56 is: 216,055.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,876.12 : 391,744.36 = 156,563.56 : x
  2. Step 2: Convert to fraction form
    283,876.12/391,744.36 = 156,563.56/x
  3. Step 3: Cross multiply
    283,876.12x = 391,744.36 × 156,563.56
  4. Step 4: Simplify right side
    283,876.12x = 61,332,891,611.52
  5. Step 5: Solve for x
    x = 61,332,891,611.52/283,876.12
  6. Step 6: Final answer
    x = 216,055.13

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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.