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Finding the Fourth Proportional to 254,376.92, 351,041.61 and 139,660.57

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Solution

The fourth proportional to 254,376.92, 351,041.61 and 139,660.57 is: 192,732.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,376.92 : 351,041.61 = 139,660.57 : x
  2. Step 2: Convert to fraction form
    254,376.92/351,041.61 = 139,660.57/x
  3. Step 3: Cross multiply
    254,376.92x = 351,041.61 × 139,660.57
  4. Step 4: Simplify right side
    254,376.92x = 49,026,672,308.85
  5. Step 5: Solve for x
    x = 49,026,672,308.85/254,376.92
  6. Step 6: Final answer
    x = 192,732.39

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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.