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Finding the Fourth Proportional to 230,565.66, 345,839.85 and 72,803.58

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Solution

The fourth proportional to 230,565.66, 345,839.85 and 72,803.58 is: 109,202.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,565.66 : 345,839.85 = 72,803.58 : x
  2. Step 2: Convert to fraction form
    230,565.66/345,839.85 = 72,803.58/x
  3. Step 3: Cross multiply
    230,565.66x = 345,839.85 × 72,803.58
  4. Step 4: Simplify right side
    230,565.66x = 25,178,379,186.66
  5. Step 5: Solve for x
    x = 25,178,379,186.66/230,565.66
  6. Step 6: Final answer
    x = 109,202.64

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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.