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Finding the Fourth Proportional to 201,118.80, 301,668.48 and 74,758.80

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Solution

The fourth proportional to 201,118.80, 301,668.48 and 74,758.80 is: 112,134.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,118.80 : 301,668.48 = 74,758.80 : x
  2. Step 2: Convert to fraction form
    201,118.80/301,668.48 = 74,758.80/x
  3. Step 3: Cross multiply
    201,118.80x = 301,668.48 × 74,758.80
  4. Step 4: Simplify right side
    201,118.80x = 22,552,373,562.62
  5. Step 5: Solve for x
    x = 22,552,373,562.62/201,118.80
  6. Step 6: Final answer
    x = 112,134.59

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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.