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Finding the Fourth Proportional to 455,570.52, 683,468.57 and 135,720.96

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Solution

The fourth proportional to 455,570.52, 683,468.57 and 135,720.96 is: 203,615.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,570.52 : 683,468.57 = 135,720.96 : x
  2. Step 2: Convert to fraction form
    455,570.52/683,468.57 = 135,720.96/x
  3. Step 3: Cross multiply
    455,570.52x = 683,468.57 × 135,720.96
  4. Step 4: Simplify right side
    455,570.52x = 92,761,010,450.23
  5. Step 5: Solve for x
    x = 92,761,010,450.23/455,570.52
  6. Step 6: Final answer
    x = 203,615.04

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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.