Home / 250,219.58-345,290.19-137,039.90

Finding the Fourth Proportional to 250,219.58, 345,290.19 and 137,039.90

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Solution

The fourth proportional to 250,219.58, 345,290.19 and 137,039.90 is: 189,108.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,219.58 : 345,290.19 = 137,039.90 : x
  2. Step 2: Convert to fraction form
    250,219.58/345,290.19 = 137,039.90/x
  3. Step 3: Cross multiply
    250,219.58x = 345,290.19 × 137,039.90
  4. Step 4: Simplify right side
    250,219.58x = 47,318,533,108.58
  5. Step 5: Solve for x
    x = 47,318,533,108.58/250,219.58
  6. Step 6: Final answer
    x = 189,108.04

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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.