Home / 283,443.45-391,151.94-156,119.05

Finding the Fourth Proportional to 283,443.45, 391,151.94 and 156,119.05

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Solution

The fourth proportional to 283,443.45, 391,151.94 and 156,119.05 is: 215,444.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,443.45 : 391,151.94 = 156,119.05 : x
  2. Step 2: Convert to fraction form
    283,443.45/391,151.94 = 156,119.05/x
  3. Step 3: Cross multiply
    283,443.45x = 391,151.94 × 156,119.05
  4. Step 4: Simplify right side
    283,443.45x = 61,066,268,298.98
  5. Step 5: Solve for x
    x = 61,066,268,298.98/283,443.45
  6. Step 6: Final answer
    x = 215,444.27

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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.