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Finding the Fourth Proportional to 201,315.40, 301,973.10 and 130,456.60

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Solution

The fourth proportional to 201,315.40, 301,973.10 and 130,456.60 is: 195,684.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,315.40 : 301,973.10 = 130,456.60 : x
  2. Step 2: Convert to fraction form
    201,315.40/301,973.10 = 130,456.60/x
  3. Step 3: Cross multiply
    201,315.40x = 301,973.10 × 130,456.60
  4. Step 4: Simplify right side
    201,315.40x = 39,394,383,917.46
  5. Step 5: Solve for x
    x = 39,394,383,917.46/201,315.40
  6. Step 6: Final answer
    x = 195,684.90

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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.