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Finding the Fourth Proportional to 203,492.90, 305,239.35 and 181,720.10

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Solution

The fourth proportional to 203,492.90, 305,239.35 and 181,720.10 is: 272,580.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,492.90 : 305,239.35 = 181,720.10 : x
  2. Step 2: Convert to fraction form
    203,492.90/305,239.35 = 181,720.10/x
  3. Step 3: Cross multiply
    203,492.90x = 305,239.35 × 181,720.10
  4. Step 4: Simplify right side
    203,492.90x = 55,468,125,205.94
  5. Step 5: Solve for x
    x = 55,468,125,205.94/203,492.90
  6. Step 6: Final answer
    x = 272,580.15

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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.