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Finding the Fourth Proportional to 250,379.08, 345,531.54 and 137,200.84

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Solution

The fourth proportional to 250,379.08, 345,531.54 and 137,200.84 is: 189,341.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,379.08 : 345,531.54 = 137,200.84 : x
  2. Step 2: Convert to fraction form
    250,379.08/345,531.54 = 137,200.84/x
  3. Step 3: Cross multiply
    250,379.08x = 345,531.54 × 137,200.84
  4. Step 4: Simplify right side
    250,379.08x = 47,407,217,534.49
  5. Step 5: Solve for x
    x = 47,407,217,534.49/250,379.08
  6. Step 6: Final answer
    x = 189,341.77

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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.