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Finding the Fourth Proportional to 303,505.07, 418,860.18 and 167,565.20

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Solution

The fourth proportional to 303,505.07, 418,860.18 and 167,565.20 is: 231,252.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,505.07 : 418,860.18 = 167,565.20 : x
  2. Step 2: Convert to fraction form
    303,505.07/418,860.18 = 167,565.20/x
  3. Step 3: Cross multiply
    303,505.07x = 418,860.18 × 167,565.20
  4. Step 4: Simplify right side
    303,505.07x = 70,186,387,739.44
  5. Step 5: Solve for x
    x = 70,186,387,739.44/303,505.07
  6. Step 6: Final answer
    x = 231,252.77

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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.