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Finding the Fourth Proportional to 308,119.87, 425,227.43 and 170,295.84

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Solution

The fourth proportional to 308,119.87, 425,227.43 and 170,295.84 is: 235,020.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,119.87 : 425,227.43 = 170,295.84 : x
  2. Step 2: Convert to fraction form
    308,119.87/425,227.43 = 170,295.84/x
  3. Step 3: Cross multiply
    308,119.87x = 425,227.43 × 170,295.84
  4. Step 4: Simplify right side
    308,119.87x = 72,414,459,831.01
  5. Step 5: Solve for x
    x = 72,414,459,831.01/308,119.87
  6. Step 6: Final answer
    x = 235,020.41

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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.