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Finding the Fourth Proportional to 303,118.71, 418,306.78 and 167,157.47

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Solution

The fourth proportional to 303,118.71, 418,306.78 and 167,157.47 is: 230,678.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,118.71 : 418,306.78 = 167,157.47 : x
  2. Step 2: Convert to fraction form
    303,118.71/418,306.78 = 167,157.47/x
  3. Step 3: Cross multiply
    303,118.71x = 418,306.78 × 167,157.47
  4. Step 4: Simplify right side
    303,118.71x = 69,923,104,283.36
  5. Step 5: Solve for x
    x = 69,923,104,283.36/303,118.71
  6. Step 6: Final answer
    x = 230,678.95

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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.