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Finding the Fourth Proportional to 303,306.75, 418,563.32 and 169,170.75

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Solution

The fourth proportional to 303,306.75, 418,563.32 and 169,170.75 is: 233,455.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,306.75 : 418,563.32 = 169,170.75 : x
  2. Step 2: Convert to fraction form
    303,306.75/418,563.32 = 169,170.75/x
  3. Step 3: Cross multiply
    303,306.75x = 418,563.32 × 169,170.75
  4. Step 4: Simplify right side
    303,306.75x = 70,808,669,921.04
  5. Step 5: Solve for x
    x = 70,808,669,921.04/303,306.75
  6. Step 6: Final answer
    x = 233,455.64

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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.