Home / 306,112.48-422,432.46-170,142.94

Finding the Fourth Proportional to 306,112.48, 422,432.46 and 170,142.94

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Solution

The fourth proportional to 306,112.48, 422,432.46 and 170,142.94 is: 234,795.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,112.48 : 422,432.46 = 170,142.94 : x
  2. Step 2: Convert to fraction form
    306,112.48/422,432.46 = 170,142.94/x
  3. Step 3: Cross multiply
    306,112.48x = 422,432.46 × 170,142.94
  4. Step 4: Simplify right side
    306,112.48x = 71,873,900,695.83
  5. Step 5: Solve for x
    x = 71,873,900,695.83/306,112.48
  6. Step 6: Final answer
    x = 234,795.72

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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.