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Finding the Fourth Proportional to 201,213.80, 301,820.70 and 60,979.40

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Solution

The fourth proportional to 201,213.80, 301,820.70 and 60,979.40 is: 91,469.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,213.80 : 301,820.70 = 60,979.40 : x
  2. Step 2: Convert to fraction form
    201,213.80/301,820.70 = 60,979.40/x
  3. Step 3: Cross multiply
    201,213.80x = 301,820.70 × 60,979.40
  4. Step 4: Simplify right side
    201,213.80x = 18,404,845,193.58
  5. Step 5: Solve for x
    x = 18,404,845,193.58/201,213.80
  6. Step 6: Final answer
    x = 91,469.10

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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.