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Finding the Fourth Proportional to 203,593.95, 280,960.01 and 112,949.93

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Solution

The fourth proportional to 203,593.95, 280,960.01 and 112,949.93 is: 155,871.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,593.95 : 280,960.01 = 112,949.93 : x
  2. Step 2: Convert to fraction form
    203,593.95/280,960.01 = 112,949.93/x
  3. Step 3: Cross multiply
    203,593.95x = 280,960.01 × 112,949.93
  4. Step 4: Simplify right side
    203,593.95x = 31,734,411,492.75
  5. Step 5: Solve for x
    x = 31,734,411,492.75/203,593.95
  6. Step 6: Final answer
    x = 155,871.09

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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.