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Finding the Fourth Proportional to 421,881.30, 582,166.98 and 240,600.90

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Solution

The fourth proportional to 421,881.30, 582,166.98 and 240,600.90 is: 332,012.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,881.30 : 582,166.98 = 240,600.90 : x
  2. Step 2: Convert to fraction form
    421,881.30/582,166.98 = 240,600.90/x
  3. Step 3: Cross multiply
    421,881.30x = 582,166.98 × 240,600.90
  4. Step 4: Simplify right side
    421,881.30x = 140,069,899,338.28
  5. Step 5: Solve for x
    x = 140,069,899,338.28/421,881.30
  6. Step 6: Final answer
    x = 332,012.58

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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.