Home / 283,730.05-391,550.13-156,410.20

Finding the Fourth Proportional to 283,730.05, 391,550.13 and 156,410.20

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Solution

The fourth proportional to 283,730.05, 391,550.13 and 156,410.20 is: 215,847.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,730.05 : 391,550.13 = 156,410.20 : x
  2. Step 2: Convert to fraction form
    283,730.05/391,550.13 = 156,410.20/x
  3. Step 3: Cross multiply
    283,730.05x = 391,550.13 × 156,410.20
  4. Step 4: Simplify right side
    283,730.05x = 61,242,434,143.33
  5. Step 5: Solve for x
    x = 61,242,434,143.33/283,730.05
  6. Step 6: Final answer
    x = 215,847.54

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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.