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Finding the Fourth Proportional to 285,549.67, 393,954.28 and 170,831.62

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Solution

The fourth proportional to 285,549.67, 393,954.28 and 170,831.62 is: 235,685.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,549.67 : 393,954.28 = 170,831.62 : x
  2. Step 2: Convert to fraction form
    285,549.67/393,954.28 = 170,831.62/x
  3. Step 3: Cross multiply
    285,549.67x = 393,954.28 × 170,831.62
  4. Step 4: Simplify right side
    285,549.67x = 67,299,847,858.33
  5. Step 5: Solve for x
    x = 67,299,847,858.33/285,549.67
  6. Step 6: Final answer
    x = 235,685.26

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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.