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Finding the Fourth Proportional to 201,512.80, 301,831.80 and 166,520.80

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Solution

The fourth proportional to 201,512.80, 301,831.80 and 166,520.80 is: 249,419.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,512.80 : 301,831.80 = 166,520.80 : x
  2. Step 2: Convert to fraction form
    201,512.80/301,831.80 = 166,520.80/x
  3. Step 3: Cross multiply
    201,512.80x = 301,831.80 × 166,520.80
  4. Step 4: Simplify right side
    201,512.80x = 50,261,272,801.44
  5. Step 5: Solve for x
    x = 50,261,272,801.44/201,512.80
  6. Step 6: Final answer
    x = 249,419.75

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1.5x scale

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.