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Finding the Fourth Proportional to 218,077.60, 326,770.80 and 162,090.40

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Solution

The fourth proportional to 218,077.60, 326,770.80 and 162,090.40 is: 242,878.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,077.60 : 326,770.80 = 162,090.40 : x
  2. Step 2: Convert to fraction form
    218,077.60/326,770.80 = 162,090.40/x
  3. Step 3: Cross multiply
    218,077.60x = 326,770.80 × 162,090.40
  4. Step 4: Simplify right side
    218,077.60x = 52,966,409,680.32
  5. Step 5: Solve for x
    x = 52,966,409,680.32/218,077.60
  6. Step 6: Final answer
    x = 242,878.73

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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.