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Finding the Fourth Proportional to 149,718.78, 224,579.79 and 38,910.78

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Solution

The fourth proportional to 149,718.78, 224,579.79 and 38,910.78 is: 58,366.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,718.78 : 224,579.79 = 38,910.78 : x
  2. Step 2: Convert to fraction form
    149,718.78/224,579.79 = 38,910.78/x
  3. Step 3: Cross multiply
    149,718.78x = 224,579.79 × 38,910.78
  4. Step 4: Simplify right side
    149,718.78x = 8,738,574,801.14
  5. Step 5: Solve for x
    x = 8,738,574,801.14/149,718.78
  6. Step 6: Final answer
    x = 58,366.59

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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.