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Finding the Fourth Proportional to 250,607.22, 345,853.71 and 137,430

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Solution

The fourth proportional to 250,607.22, 345,853.71 and 137,430 is: 189,662.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,607.22 : 345,853.71 = 137,430 : x
  2. Step 2: Convert to fraction form
    250,607.22/345,853.71 = 137,430/x
  3. Step 3: Cross multiply
    250,607.22x = 345,853.71 × 137,430
  4. Step 4: Simplify right side
    250,607.22x = 47,530,675,365.30
  5. Step 5: Solve for x
    x = 47,530,675,365.30/250,607.22
  6. Step 6: Final answer
    x = 189,662.04

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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.