Home / 250,157.16-345,219.66-135,438.30

Finding the Fourth Proportional to 250,157.16, 345,219.66 and 135,438.30

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Solution

The fourth proportional to 250,157.16, 345,219.66 and 135,438.30 is: 186,906.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,157.16 : 345,219.66 = 135,438.30 : x
  2. Step 2: Convert to fraction form
    250,157.16/345,219.66 = 135,438.30/x
  3. Step 3: Cross multiply
    250,157.16x = 345,219.66 × 135,438.30
  4. Step 4: Simplify right side
    250,157.16x = 46,755,963,876.98
  5. Step 5: Solve for x
    x = 46,755,963,876.98/250,157.16
  6. Step 6: Final answer
    x = 186,906.36

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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.