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Finding the Fourth Proportional to 203,598.68, 280,967.87 and 112,960.58

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Solution

The fourth proportional to 203,598.68, 280,967.87 and 112,960.58 is: 155,886.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,598.68 : 280,967.87 = 112,960.58 : x
  2. Step 2: Convert to fraction form
    203,598.68/280,967.87 = 112,960.58/x
  3. Step 3: Cross multiply
    203,598.68x = 280,967.87 × 112,960.58
  4. Step 4: Simplify right side
    203,598.68x = 31,738,293,694.18
  5. Step 5: Solve for x
    x = 31,738,293,694.18/203,598.68
  6. Step 6: Final answer
    x = 155,886.54

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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.