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Finding the Fourth Proportional to 250,626.78, 345,865.42 and 137,450.34

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Solution

The fourth proportional to 250,626.78, 345,865.42 and 137,450.34 is: 189,681.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,626.78 : 345,865.42 = 137,450.34 : x
  2. Step 2: Convert to fraction form
    250,626.78/345,865.42 = 137,450.34/x
  3. Step 3: Cross multiply
    250,626.78x = 345,865.42 × 137,450.34
  4. Step 4: Simplify right side
    250,626.78x = 47,539,319,573.24
  5. Step 5: Solve for x
    x = 47,539,319,573.24/250,626.78
  6. Step 6: Final answer
    x = 189,681.72

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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.