Home / 283,421.12-391,120.13-156,096.41

Finding the Fourth Proportional to 283,421.12, 391,120.13 and 156,096.41

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Solution

The fourth proportional to 283,421.12, 391,120.13 and 156,096.41 is: 215,412.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,421.12 : 391,120.13 = 156,096.41 : x
  2. Step 2: Convert to fraction form
    283,421.12/391,120.13 = 156,096.41/x
  3. Step 3: Cross multiply
    283,421.12x = 391,120.13 × 156,096.41
  4. Step 4: Simplify right side
    283,421.12x = 61,052,447,391.25
  5. Step 5: Solve for x
    x = 61,052,447,391.25/283,421.12
  6. Step 6: Final answer
    x = 215,412.48

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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.