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Finding the Fourth Proportional to 312,049.44, 430,626.48 and 168,809.04

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Solution

The fourth proportional to 312,049.44, 430,626.48 and 168,809.04 is: 232,955.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,049.44 : 430,626.48 = 168,809.04 : x
  2. Step 2: Convert to fraction form
    312,049.44/430,626.48 = 168,809.04/x
  3. Step 3: Cross multiply
    312,049.44x = 430,626.48 × 168,809.04
  4. Step 4: Simplify right side
    312,049.44x = 72,693,642,687.38
  5. Step 5: Solve for x
    x = 72,693,642,687.38/312,049.44
  6. Step 6: Final answer
    x = 232,955.53

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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.