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Finding the Fourth Proportional to 250,141.64, 345,192.03 and 136,964.39

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Solution

The fourth proportional to 250,141.64, 345,192.03 and 136,964.39 is: 189,008.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,141.64 : 345,192.03 = 136,964.39 : x
  2. Step 2: Convert to fraction form
    250,141.64/345,192.03 = 136,964.39/x
  3. Step 3: Cross multiply
    250,141.64x = 345,192.03 × 136,964.39
  4. Step 4: Simplify right side
    250,141.64x = 47,279,014,095.85
  5. Step 5: Solve for x
    x = 47,279,014,095.85/250,141.64
  6. Step 6: Final answer
    x = 189,008.98

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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.