Home / 215,949.83-298,017.11-120,454.47

Finding the Fourth Proportional to 215,949.83, 298,017.11 and 120,454.47

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Solution

The fourth proportional to 215,949.83, 298,017.11 and 120,454.47 is: 166,230.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,949.83 : 298,017.11 = 120,454.47 : x
  2. Step 2: Convert to fraction form
    215,949.83/298,017.11 = 120,454.47/x
  3. Step 3: Cross multiply
    215,949.83x = 298,017.11 × 120,454.47
  4. Step 4: Simplify right side
    215,949.83x = 35,897,492,433.71
  5. Step 5: Solve for x
    x = 35,897,492,433.71/215,949.83
  6. Step 6: Final answer
    x = 166,230.71

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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.