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Finding the Fourth Proportional to 290,963.60, 436,251 and 234,872.72

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Solution

The fourth proportional to 290,963.60, 436,251 and 234,872.72 is: 352,152.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,963.60 : 436,251 = 234,872.72 : x
  2. Step 2: Convert to fraction form
    290,963.60/436,251 = 234,872.72/x
  3. Step 3: Cross multiply
    290,963.60x = 436,251 × 234,872.72
  4. Step 4: Simplify right side
    290,963.60x = 102,463,458,972.72
  5. Step 5: Solve for x
    x = 102,463,458,972.72/290,963.60
  6. Step 6: Final answer
    x = 352,152.16

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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.