Home / 283,416.16-391,131.99-156,091.72

Finding the Fourth Proportional to 283,416.16, 391,131.99 and 156,091.72

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Solution

The fourth proportional to 283,416.16, 391,131.99 and 156,091.72 is: 215,416.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,416.16 : 391,131.99 = 156,091.72 : x
  2. Step 2: Convert to fraction form
    283,416.16/391,131.99 = 156,091.72/x
  3. Step 3: Cross multiply
    283,416.16x = 391,131.99 × 156,091.72
  4. Step 4: Simplify right side
    283,416.16x = 61,052,465,066.12
  5. Step 5: Solve for x
    x = 61,052,465,066.12/283,416.16
  6. Step 6: Final answer
    x = 215,416.32

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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.