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Finding the Fourth Proportional to 201,207.60, 301,811.40 and 130,348.80

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Solution

The fourth proportional to 201,207.60, 301,811.40 and 130,348.80 is: 195,523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,207.60 : 301,811.40 = 130,348.80 : x
  2. Step 2: Convert to fraction form
    201,207.60/301,811.40 = 130,348.80/x
  3. Step 3: Cross multiply
    201,207.60x = 301,811.40 × 130,348.80
  4. Step 4: Simplify right side
    201,207.60x = 39,340,753,816.32
  5. Step 5: Solve for x
    x = 39,340,753,816.32/201,207.60
  6. Step 6: Final answer
    x = 195,523.20

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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.