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Finding the Fourth Proportional to 250,103.76, 345,144.20 and 136,937.04

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Solution

The fourth proportional to 250,103.76, 345,144.20 and 136,937.04 is: 188,973.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,103.76 : 345,144.20 = 136,937.04 : x
  2. Step 2: Convert to fraction form
    250,103.76/345,144.20 = 136,937.04/x
  3. Step 3: Cross multiply
    250,103.76x = 345,144.20 × 136,937.04
  4. Step 4: Simplify right side
    250,103.76x = 47,263,025,121.17
  5. Step 5: Solve for x
    x = 47,263,025,121.17/250,103.76
  6. Step 6: Final answer
    x = 188,973.67

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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.