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Finding the Fourth Proportional to 218,994.50, 302,213.14 and 118,393.22

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Solution

The fourth proportional to 218,994.50, 302,213.14 and 118,393.22 is: 163,383.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,994.50 : 302,213.14 = 118,393.22 : x
  2. Step 2: Convert to fraction form
    218,994.50/302,213.14 = 118,393.22/x
  3. Step 3: Cross multiply
    218,994.50x = 302,213.14 × 118,393.22
  4. Step 4: Simplify right side
    218,994.50x = 35,779,986,770.91
  5. Step 5: Solve for x
    x = 35,779,986,770.91/218,994.50
  6. Step 6: Final answer
    x = 163,383.04

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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.