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Finding the Fourth Proportional to 272,680.67, 409,041.50 and 72,996.63

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Solution

The fourth proportional to 272,680.67, 409,041.50 and 72,996.63 is: 109,500.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,680.67 : 409,041.50 = 72,996.63 : x
  2. Step 2: Convert to fraction form
    272,680.67/409,041.50 = 72,996.63/x
  3. Step 3: Cross multiply
    272,680.67x = 409,041.50 × 72,996.63
  4. Step 4: Simplify right side
    272,680.67x = 29,858,651,030.15
  5. Step 5: Solve for x
    x = 29,858,651,030.15/272,680.67
  6. Step 6: Final answer
    x = 109,500.43

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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.