Home / 306,213.95-422,438.87-178,833.35

Finding the Fourth Proportional to 306,213.95, 422,438.87 and 178,833.35

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Solution

The fourth proportional to 306,213.95, 422,438.87 and 178,833.35 is: 246,710.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,213.95 : 422,438.87 = 178,833.35 : x
  2. Step 2: Convert to fraction form
    306,213.95/422,438.87 = 178,833.35/x
  3. Step 3: Cross multiply
    306,213.95x = 422,438.87 × 178,833.35
  4. Step 4: Simplify right side
    306,213.95x = 75,546,155,285.95
  5. Step 5: Solve for x
    x = 75,546,155,285.95/306,213.95
  6. Step 6: Final answer
    x = 246,710.37

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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.