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Finding the Fourth Proportional to 250,722.66, 345,991.04 and 140,339.76

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Solution

The fourth proportional to 250,722.66, 345,991.04 and 140,339.76 is: 193,665.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,722.66 : 345,991.04 = 140,339.76 : x
  2. Step 2: Convert to fraction form
    250,722.66/345,991.04 = 140,339.76/x
  3. Step 3: Cross multiply
    250,722.66x = 345,991.04 × 140,339.76
  4. Step 4: Simplify right side
    250,722.66x = 48,556,298,814.05
  5. Step 5: Solve for x
    x = 48,556,298,814.05/250,722.66
  6. Step 6: Final answer
    x = 193,665.38

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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.