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Finding the Fourth Proportional to 201,831.80, 302,310.30 and 166,839.80

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Solution

The fourth proportional to 201,831.80, 302,310.30 and 166,839.80 is: 249,898.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,831.80 : 302,310.30 = 166,839.80 : x
  2. Step 2: Convert to fraction form
    201,831.80/302,310.30 = 166,839.80/x
  3. Step 3: Cross multiply
    201,831.80x = 302,310.30 × 166,839.80
  4. Step 4: Simplify right side
    201,831.80x = 50,437,389,989.94
  5. Step 5: Solve for x
    x = 50,437,389,989.94/201,831.80
  6. Step 6: Final answer
    x = 249,898.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.