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Finding the Fourth Proportional to 220,272.72, 330,072.67 and 163,839.92

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Solution

The fourth proportional to 220,272.72, 330,072.67 and 163,839.92 is: 245,509.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,272.72 : 330,072.67 = 163,839.92 : x
  2. Step 2: Convert to fraction form
    220,272.72/330,072.67 = 163,839.92/x
  3. Step 3: Cross multiply
    220,272.72x = 330,072.67 × 163,839.92
  4. Step 4: Simplify right side
    220,272.72x = 54,079,078,401.42
  5. Step 5: Solve for x
    x = 54,079,078,401.42/220,272.72
  6. Step 6: Final answer
    x = 245,509.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.