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Finding the Fourth Proportional to 303,089.86, 418,255.94 and 167,121.50

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Solution

The fourth proportional to 303,089.86, 418,255.94 and 167,121.50 is: 230,623.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,089.86 : 418,255.94 = 167,121.50 : x
  2. Step 2: Convert to fraction form
    303,089.86/418,255.94 = 167,121.50/x
  3. Step 3: Cross multiply
    303,089.86x = 418,255.94 × 167,121.50
  4. Step 4: Simplify right side
    303,089.86x = 69,899,561,540.15
  5. Step 5: Solve for x
    x = 69,899,561,540.15/303,089.86
  6. Step 6: Final answer
    x = 230,623.23

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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.