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Finding the Fourth Proportional to 555,942.72, 833,907.12 and 135,218.88

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Solution

The fourth proportional to 555,942.72, 833,907.12 and 135,218.88 is: 202,826.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,942.72 : 833,907.12 = 135,218.88 : x
  2. Step 2: Convert to fraction form
    555,942.72/833,907.12 = 135,218.88/x
  3. Step 3: Cross multiply
    555,942.72x = 833,907.12 × 135,218.88
  4. Step 4: Simplify right side
    555,942.72x = 112,759,986,790.43
  5. Step 5: Solve for x
    x = 112,759,986,790.43/555,942.72
  6. Step 6: Final answer
    x = 202,826.63

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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.