Home / 281,298.40-421,949.36-115,086.40

Finding the Fourth Proportional to 281,298.40, 421,949.36 and 115,086.40

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Solution

The fourth proportional to 281,298.40, 421,949.36 and 115,086.40 is: 172,630.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,298.40 : 421,949.36 = 115,086.40 : x
  2. Step 2: Convert to fraction form
    281,298.40/421,949.36 = 115,086.40/x
  3. Step 3: Cross multiply
    281,298.40x = 421,949.36 × 115,086.40
  4. Step 4: Simplify right side
    281,298.40x = 48,560,632,824.70
  5. Step 5: Solve for x
    x = 48,560,632,824.70/281,298.40
  6. Step 6: Final answer
    x = 172,630.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.