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Finding the Fourth Proportional to 250,079.34, 345,109.51 and 136,902.09

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Solution

The fourth proportional to 250,079.34, 345,109.51 and 136,902.09 is: 188,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,079.34 : 345,109.51 = 136,902.09 : x
  2. Step 2: Convert to fraction form
    250,079.34/345,109.51 = 136,902.09/x
  3. Step 3: Cross multiply
    250,079.34x = 345,109.51 × 136,902.09
  4. Step 4: Simplify right side
    250,079.34x = 47,246,214,663.16
  5. Step 5: Solve for x
    x = 47,246,214,663.16/250,079.34
  6. Step 6: Final answer
    x = 188,924.90

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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.