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Finding the Fourth Proportional to 254,203.97, 350,789.72 and 139,479.76

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Solution

The fourth proportional to 254,203.97, 350,789.72 and 139,479.76 is: 192,475.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,203.97 : 350,789.72 = 139,479.76 : x
  2. Step 2: Convert to fraction form
    254,203.97/350,789.72 = 139,479.76/x
  3. Step 3: Cross multiply
    254,203.97x = 350,789.72 × 139,479.76
  4. Step 4: Simplify right side
    254,203.97x = 48,928,064,381.69
  5. Step 5: Solve for x
    x = 48,928,064,381.69/254,203.97
  6. Step 6: Final answer
    x = 192,475.61

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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.