Home / 283,627.13-391,405.43-156,302.72

Finding the Fourth Proportional to 283,627.13, 391,405.43 and 156,302.72

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Solution

The fourth proportional to 283,627.13, 391,405.43 and 156,302.72 is: 215,697.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,627.13 : 391,405.43 = 156,302.72 : x
  2. Step 2: Convert to fraction form
    283,627.13/391,405.43 = 156,302.72/x
  3. Step 3: Cross multiply
    283,627.13x = 391,405.43 × 156,302.72
  4. Step 4: Simplify right side
    283,627.13x = 61,177,733,233.27
  5. Step 5: Solve for x
    x = 61,177,733,233.27/283,627.13
  6. Step 6: Final answer
    x = 215,697.75

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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.