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Finding the Fourth Proportional to 272,387.72, 375,902.70 and 151,532.84

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Solution

The fourth proportional to 272,387.72, 375,902.70 and 151,532.84 is: 209,119.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,387.72 : 375,902.70 = 151,532.84 : x
  2. Step 2: Convert to fraction form
    272,387.72/375,902.70 = 151,532.84/x
  3. Step 3: Cross multiply
    272,387.72x = 375,902.70 × 151,532.84
  4. Step 4: Simplify right side
    272,387.72x = 56,961,603,694.67
  5. Step 5: Solve for x
    x = 56,961,603,694.67/272,387.72
  6. Step 6: Final answer
    x = 209,119.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.