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Finding the Fourth Proportional to 218,855.46, 302,020.41 and 118,253.46

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Solution

The fourth proportional to 218,855.46, 302,020.41 and 118,253.46 is: 163,189.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,855.46 : 302,020.41 = 118,253.46 : x
  2. Step 2: Convert to fraction form
    218,855.46/302,020.41 = 118,253.46/x
  3. Step 3: Cross multiply
    218,855.46x = 302,020.41 × 118,253.46
  4. Step 4: Simplify right side
    218,855.46x = 35,714,958,473.12
  5. Step 5: Solve for x
    x = 35,714,958,473.12/218,855.46
  6. Step 6: Final answer
    x = 163,189.71

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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.