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Finding the Fourth Proportional to 303,426.16, 418,751.88 and 167,487.12

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Solution

The fourth proportional to 303,426.16, 418,751.88 and 167,487.12 is: 231,145.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,426.16 : 418,751.88 = 167,487.12 : x
  2. Step 2: Convert to fraction form
    303,426.16/418,751.88 = 167,487.12/x
  3. Step 3: Cross multiply
    303,426.16x = 418,751.88 × 167,487.12
  4. Step 4: Simplify right side
    303,426.16x = 70,135,546,375.79
  5. Step 5: Solve for x
    x = 70,135,546,375.79/303,426.16
  6. Step 6: Final answer
    x = 231,145.35

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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.