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Finding the Fourth Proportional to 166,571.40, 249,784.20 and 66,698.40

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Solution

The fourth proportional to 166,571.40, 249,784.20 and 66,698.40 is: 100,018.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,571.40 : 249,784.20 = 66,698.40 : x
  2. Step 2: Convert to fraction form
    166,571.40/249,784.20 = 66,698.40/x
  3. Step 3: Cross multiply
    166,571.40x = 249,784.20 × 66,698.40
  4. Step 4: Simplify right side
    166,571.40x = 16,660,206,485.28
  5. Step 5: Solve for x
    x = 16,660,206,485.28/166,571.40
  6. Step 6: Final answer
    x = 100,018.41

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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.