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Finding the Fourth Proportional to 316,760.76, 436,964.13 and 195,863.40

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Solution

The fourth proportional to 316,760.76, 436,964.13 and 195,863.40 is: 270,189.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,760.76 : 436,964.13 = 195,863.40 : x
  2. Step 2: Convert to fraction form
    316,760.76/436,964.13 = 195,863.40/x
  3. Step 3: Cross multiply
    316,760.76x = 436,964.13 × 195,863.40
  4. Step 4: Simplify right side
    316,760.76x = 85,585,280,179.84
  5. Step 5: Solve for x
    x = 85,585,280,179.84/316,760.76
  6. Step 6: Final answer
    x = 270,189.02

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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.