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Finding the Fourth Proportional to 203,538.98, 280,838.84 and 117,479.64

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Solution

The fourth proportional to 203,538.98, 280,838.84 and 117,479.64 is: 162,095.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,538.98 : 280,838.84 = 117,479.64 : x
  2. Step 2: Convert to fraction form
    203,538.98/280,838.84 = 117,479.64/x
  3. Step 3: Cross multiply
    203,538.98x = 280,838.84 × 117,479.64
  4. Step 4: Simplify right side
    203,538.98x = 32,992,845,233.82
  5. Step 5: Solve for x
    x = 32,992,845,233.82/203,538.98
  6. Step 6: Final answer
    x = 162,095.96

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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.