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Finding the Fourth Proportional to 311,844.93, 430,346.62 and 168,604.97

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Solution

The fourth proportional to 311,844.93, 430,346.62 and 168,604.97 is: 232,675.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,844.93 : 430,346.62 = 168,604.97 : x
  2. Step 2: Convert to fraction form
    311,844.93/430,346.62 = 168,604.97/x
  3. Step 3: Cross multiply
    311,844.93x = 430,346.62 × 168,604.97
  4. Step 4: Simplify right side
    311,844.93x = 72,558,578,954.70
  5. Step 5: Solve for x
    x = 72,558,578,954.70/311,844.93
  6. Step 6: Final answer
    x = 232,675.19

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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.