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Finding the Fourth Proportional to 201,199.60, 301,799.40 and 101,321.20

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Solution

The fourth proportional to 201,199.60, 301,799.40 and 101,321.20 is: 151,981.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,199.60 : 301,799.40 = 101,321.20 : x
  2. Step 2: Convert to fraction form
    201,199.60/301,799.40 = 101,321.20/x
  3. Step 3: Cross multiply
    201,199.60x = 301,799.40 × 101,321.20
  4. Step 4: Simplify right side
    201,199.60x = 30,578,677,367.28
  5. Step 5: Solve for x
    x = 30,578,677,367.28/201,199.60
  6. Step 6: Final answer
    x = 151,981.80

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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.