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Finding the Fourth Proportional to 227,603.40, 341,150.52 and 85,311.72

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Solution

The fourth proportional to 227,603.40, 341,150.52 and 85,311.72 is: 127,872.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,603.40 : 341,150.52 = 85,311.72 : x
  2. Step 2: Convert to fraction form
    227,603.40/341,150.52 = 85,311.72/x
  3. Step 3: Cross multiply
    227,603.40x = 341,150.52 × 85,311.72
  4. Step 4: Simplify right side
    227,603.40x = 29,104,137,640.09
  5. Step 5: Solve for x
    x = 29,104,137,640.09/227,603.40
  6. Step 6: Final answer
    x = 127,872.16

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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.