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Finding the Fourth Proportional to 260,697.40, 391,337.70 and 201,794.20

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Solution

The fourth proportional to 260,697.40, 391,337.70 and 201,794.20 is: 302,917.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,697.40 : 391,337.70 = 201,794.20 : x
  2. Step 2: Convert to fraction form
    260,697.40/391,337.70 = 201,794.20/x
  3. Step 3: Cross multiply
    260,697.40x = 391,337.70 × 201,794.20
  4. Step 4: Simplify right side
    260,697.40x = 78,969,678,101.34
  5. Step 5: Solve for x
    x = 78,969,678,101.34/260,697.40
  6. Step 6: Final answer
    x = 302,917.01

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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.