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Finding the Fourth Proportional to 218,873.60, 328,321.20 and 113,897.60

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Solution

The fourth proportional to 218,873.60, 328,321.20 and 113,897.60 is: 170,852.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,873.60 : 328,321.20 = 113,897.60 : x
  2. Step 2: Convert to fraction form
    218,873.60/328,321.20 = 113,897.60/x
  3. Step 3: Cross multiply
    218,873.60x = 328,321.20 × 113,897.60
  4. Step 4: Simplify right side
    218,873.60x = 37,394,996,709.12
  5. Step 5: Solve for x
    x = 37,394,996,709.12/218,873.60
  6. Step 6: Final answer
    x = 170,852.02

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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.