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Finding the Fourth Proportional to 296,754.84, 445,132.82 and 72,115.48

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Solution

The fourth proportional to 296,754.84, 445,132.82 and 72,115.48 is: 108,173.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,754.84 : 445,132.82 = 72,115.48 : x
  2. Step 2: Convert to fraction form
    296,754.84/445,132.82 = 72,115.48/x
  3. Step 3: Cross multiply
    296,754.84x = 445,132.82 × 72,115.48
  4. Step 4: Simplify right side
    296,754.84x = 32,100,966,978.05
  5. Step 5: Solve for x
    x = 32,100,966,978.05/296,754.84
  6. Step 6: Final answer
    x = 108,173.36

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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.