Home / 250,128.82-345,177.40-135,406.90

Finding the Fourth Proportional to 250,128.82, 345,177.40 and 135,406.90

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Solution

The fourth proportional to 250,128.82, 345,177.40 and 135,406.90 is: 186,861.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,128.82 : 345,177.40 = 135,406.90 : x
  2. Step 2: Convert to fraction form
    250,128.82/345,177.40 = 135,406.90/x
  3. Step 3: Cross multiply
    250,128.82x = 345,177.40 × 135,406.90
  4. Step 4: Simplify right side
    250,128.82x = 46,739,401,684.06
  5. Step 5: Solve for x
    x = 46,739,401,684.06/250,128.82
  6. Step 6: Final answer
    x = 186,861.32

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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.