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Finding the Fourth Proportional to 218,997.49, 302,195.53 and 133,003.54

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Solution

The fourth proportional to 218,997.49, 302,195.53 and 133,003.54 is: 183,532.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,997.49 : 302,195.53 = 133,003.54 : x
  2. Step 2: Convert to fraction form
    218,997.49/302,195.53 = 133,003.54/x
  3. Step 3: Cross multiply
    218,997.49x = 302,195.53 × 133,003.54
  4. Step 4: Simplify right side
    218,997.49x = 40,193,074,480.40
  5. Step 5: Solve for x
    x = 40,193,074,480.40/218,997.49
  6. Step 6: Final answer
    x = 183,532.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.