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Finding the Fourth Proportional to 260,724.30, 391,086.45 and 201,675.30

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Solution

The fourth proportional to 260,724.30, 391,086.45 and 201,675.30 is: 302,512.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,724.30 : 391,086.45 = 201,675.30 : x
  2. Step 2: Convert to fraction form
    260,724.30/391,086.45 = 201,675.30/x
  3. Step 3: Cross multiply
    260,724.30x = 391,086.45 × 201,675.30
  4. Step 4: Simplify right side
    260,724.30x = 78,872,477,129.69
  5. Step 5: Solve for x
    x = 78,872,477,129.69/260,724.30
  6. Step 6: Final answer
    x = 302,512.95

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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.