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Finding the Fourth Proportional to 242,992.63, 335,323.36 and 135,559.90

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Solution

The fourth proportional to 242,992.63, 335,323.36 and 135,559.90 is: 187,069.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,992.63 : 335,323.36 = 135,559.90 : x
  2. Step 2: Convert to fraction form
    242,992.63/335,323.36 = 135,559.90/x
  3. Step 3: Cross multiply
    242,992.63x = 335,323.36 × 135,559.90
  4. Step 4: Simplify right side
    242,992.63x = 45,456,401,737.87
  5. Step 5: Solve for x
    x = 45,456,401,737.87/242,992.63
  6. Step 6: Final answer
    x = 187,069.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.