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Finding the Fourth Proportional to 260,801.70, 391,202.55 and 134,441.70

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Solution

The fourth proportional to 260,801.70, 391,202.55 and 134,441.70 is: 201,662.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,801.70 : 391,202.55 = 134,441.70 : x
  2. Step 2: Convert to fraction form
    260,801.70/391,202.55 = 134,441.70/x
  3. Step 3: Cross multiply
    260,801.70x = 391,202.55 × 134,441.70
  4. Step 4: Simplify right side
    260,801.70x = 52,593,935,866.34
  5. Step 5: Solve for x
    x = 52,593,935,866.34/260,801.70
  6. Step 6: Final answer
    x = 201,662.55

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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.