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Finding the Fourth Proportional to 250,168.60, 345,232.80 and 136,991.34

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Solution

The fourth proportional to 250,168.60, 345,232.80 and 136,991.34 is: 189,048.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,168.60 : 345,232.80 = 136,991.34 : x
  2. Step 2: Convert to fraction form
    250,168.60/345,232.80 = 136,991.34/x
  3. Step 3: Cross multiply
    250,168.60x = 345,232.80 × 136,991.34
  4. Step 4: Simplify right side
    250,168.60x = 47,293,903,883.95
  5. Step 5: Solve for x
    x = 47,293,903,883.95/250,168.60
  6. Step 6: Final answer
    x = 189,048.12

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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.