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Finding the Fourth Proportional to 250,722.52, 375,989.10 and 100,911.76

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Solution

The fourth proportional to 250,722.52, 375,989.10 and 100,911.76 is: 151,329.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,722.52 : 375,989.10 = 100,911.76 : x
  2. Step 2: Convert to fraction form
    250,722.52/375,989.10 = 100,911.76/x
  3. Step 3: Cross multiply
    250,722.52x = 375,989.10 × 100,911.76
  4. Step 4: Simplify right side
    250,722.52x = 37,941,721,821.82
  5. Step 5: Solve for x
    x = 37,941,721,821.82/250,722.52
  6. Step 6: Final answer
    x = 151,329.53

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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.