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Finding the Fourth Proportional to 181,492.20, 272,108.70 and 102,630.60

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Solution

The fourth proportional to 181,492.20, 272,108.70 and 102,630.60 is: 153,872.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,492.20 : 272,108.70 = 102,630.60 : x
  2. Step 2: Convert to fraction form
    181,492.20/272,108.70 = 102,630.60/x
  3. Step 3: Cross multiply
    181,492.20x = 272,108.70 × 102,630.60
  4. Step 4: Simplify right side
    181,492.20x = 27,926,679,146.22
  5. Step 5: Solve for x
    x = 27,926,679,146.22/181,492.20
  6. Step 6: Final answer
    x = 153,872.61

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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.