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Finding the Fourth Proportional to 203,552, 280,901.88 and 112,904.96

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Solution

The fourth proportional to 203,552, 280,901.88 and 112,904.96 is: 155,808.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,552 : 280,901.88 = 112,904.96 : x
  2. Step 2: Convert to fraction form
    203,552/280,901.88 = 112,904.96/x
  3. Step 3: Cross multiply
    203,552x = 280,901.88 × 112,904.96
  4. Step 4: Simplify right side
    203,552x = 31,715,215,525.32
  5. Step 5: Solve for x
    x = 31,715,215,525.32/203,552
  6. Step 6: Final answer
    x = 155,808.91

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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.