Home / 283,608.12-391,381.83-156,288.27

Finding the Fourth Proportional to 283,608.12, 391,381.83 and 156,288.27

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Solution

The fourth proportional to 283,608.12, 391,381.83 and 156,288.27 is: 215,679.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,608.12 : 391,381.83 = 156,288.27 : x
  2. Step 2: Convert to fraction form
    283,608.12/391,381.83 = 156,288.27/x
  3. Step 3: Cross multiply
    283,608.12x = 391,381.83 × 156,288.27
  4. Step 4: Simplify right side
    283,608.12x = 61,168,389,120.13
  5. Step 5: Solve for x
    x = 61,168,389,120.13/283,608.12
  6. Step 6: Final answer
    x = 215,679.26

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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.