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Finding the Fourth Proportional to 303,306.84, 418,564.89 and 167,340.78

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Solution

The fourth proportional to 303,306.84, 418,564.89 and 167,340.78 is: 230,931.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,306.84 : 418,564.89 = 167,340.78 : x
  2. Step 2: Convert to fraction form
    303,306.84/418,564.89 = 167,340.78/x
  3. Step 3: Cross multiply
    303,306.84x = 418,564.89 × 167,340.78
  4. Step 4: Simplify right side
    303,306.84x = 70,042,975,173.21
  5. Step 5: Solve for x
    x = 70,042,975,173.21/303,306.84
  6. Step 6: Final answer
    x = 230,931.08

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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.