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Finding the Fourth Proportional to 218,755.75, 301,883.14 and 118,153.75

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Solution

The fourth proportional to 218,755.75, 301,883.14 and 118,153.75 is: 163,052.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,755.75 : 301,883.14 = 118,153.75 : x
  2. Step 2: Convert to fraction form
    218,755.75/301,883.14 = 118,153.75/x
  3. Step 3: Cross multiply
    218,755.75x = 301,883.14 × 118,153.75
  4. Step 4: Simplify right side
    218,755.75x = 35,668,625,052.78
  5. Step 5: Solve for x
    x = 35,668,625,052.78/218,755.75
  6. Step 6: Final answer
    x = 163,052.29

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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.