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Finding the Fourth Proportional to 201,443.80, 301,728.30 and 122,711.80

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Solution

The fourth proportional to 201,443.80, 301,728.30 and 122,711.80 is: 183,801.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,443.80 : 301,728.30 = 122,711.80 : x
  2. Step 2: Convert to fraction form
    201,443.80/301,728.30 = 122,711.80/x
  3. Step 3: Cross multiply
    201,443.80x = 301,728.30 × 122,711.80
  4. Step 4: Simplify right side
    201,443.80x = 37,025,622,803.94
  5. Step 5: Solve for x
    x = 37,025,622,803.94/201,443.80
  6. Step 6: Final answer
    x = 183,801.25

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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.