Home / 283,616.73-391,389.21-156,292.43

Finding the Fourth Proportional to 283,616.73, 391,389.21 and 156,292.43

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Solution

The fourth proportional to 283,616.73, 391,389.21 and 156,292.43 is: 215,682.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,616.73 : 391,389.21 = 156,292.43 : x
  2. Step 2: Convert to fraction form
    283,616.73/391,389.21 = 156,292.43/x
  3. Step 3: Cross multiply
    283,616.73x = 391,389.21 × 156,292.43
  4. Step 4: Simplify right side
    283,616.73x = 61,171,168,749.73
  5. Step 5: Solve for x
    x = 61,171,168,749.73/283,616.73
  6. Step 6: Final answer
    x = 215,682.51

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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.