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Finding the Fourth Proportional to 218,418.40, 327,627.60 and 70,674.40

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Solution

The fourth proportional to 218,418.40, 327,627.60 and 70,674.40 is: 106,011.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,418.40 : 327,627.60 = 70,674.40 : x
  2. Step 2: Convert to fraction form
    218,418.40/327,627.60 = 70,674.40/x
  3. Step 3: Cross multiply
    218,418.40x = 327,627.60 × 70,674.40
  4. Step 4: Simplify right side
    218,418.40x = 23,154,884,053.44
  5. Step 5: Solve for x
    x = 23,154,884,053.44/218,418.40
  6. Step 6: Final answer
    x = 106,011.60

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1.5x scale

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.