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Finding the Fourth Proportional to 143,304.30, 214,961.25 and 64,418.76

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Solution

The fourth proportional to 143,304.30, 214,961.25 and 64,418.76 is: 96,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,304.30 : 214,961.25 = 64,418.76 : x
  2. Step 2: Convert to fraction form
    143,304.30/214,961.25 = 64,418.76/x
  3. Step 3: Cross multiply
    143,304.30x = 214,961.25 × 64,418.76
  4. Step 4: Simplify right side
    143,304.30x = 13,847,537,173.05
  5. Step 5: Solve for x
    x = 13,847,537,173.05/143,304.30
  6. Step 6: Final answer
    x = 96,630.30

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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.