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Finding the Fourth Proportional to 203,092.95, 280,278.63 and 112,458.95

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Solution

The fourth proportional to 203,092.95, 280,278.63 and 112,458.95 is: 155,199.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,092.95 : 280,278.63 = 112,458.95 : x
  2. Step 2: Convert to fraction form
    203,092.95/280,278.63 = 112,458.95/x
  3. Step 3: Cross multiply
    203,092.95x = 280,278.63 × 112,458.95
  4. Step 4: Simplify right side
    203,092.95x = 31,519,839,035.85
  5. Step 5: Solve for x
    x = 31,519,839,035.85/203,092.95
  6. Step 6: Final answer
    x = 155,199.08

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1.5x scale

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.