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Finding the Fourth Proportional to 181,990.58, 272,986.57 and 55,630.34

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Solution

The fourth proportional to 181,990.58, 272,986.57 and 55,630.34 is: 83,445.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,990.58 : 272,986.57 = 55,630.34 : x
  2. Step 2: Convert to fraction form
    181,990.58/272,986.57 = 55,630.34/x
  3. Step 3: Cross multiply
    181,990.58x = 272,986.57 × 55,630.34
  4. Step 4: Simplify right side
    181,990.58x = 15,186,335,704.53
  5. Step 5: Solve for x
    x = 15,186,335,704.53/181,990.58
  6. Step 6: Final answer
    x = 83,445.72

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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.