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Finding the Fourth Proportional to 201,042.10, 301,217.55 and 130,885.30

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Solution

The fourth proportional to 201,042.10, 301,217.55 and 130,885.30 is: 196,102.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,042.10 : 301,217.55 = 130,885.30 : x
  2. Step 2: Convert to fraction form
    201,042.10/301,217.55 = 130,885.30/x
  3. Step 3: Cross multiply
    201,042.10x = 301,217.55 × 130,885.30
  4. Step 4: Simplify right side
    201,042.10x = 39,424,949,397.02
  5. Step 5: Solve for x
    x = 39,424,949,397.02/201,042.10
  6. Step 6: Final answer
    x = 196,102.95

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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.