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Finding the Fourth Proportional to 220,409.37, 330,489.59 and 201,601.17

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Solution

The fourth proportional to 220,409.37, 330,489.59 and 201,601.17 is: 302,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,409.37 : 330,489.59 = 201,601.17 : x
  2. Step 2: Convert to fraction form
    220,409.37/330,489.59 = 201,601.17/x
  3. Step 3: Cross multiply
    220,409.37x = 330,489.59 × 201,601.17
  4. Step 4: Simplify right side
    220,409.37x = 66,627,087,008.81
  5. Step 5: Solve for x
    x = 66,627,087,008.81/220,409.37
  6. Step 6: Final answer
    x = 302,287.91

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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.