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Finding the Fourth Proportional to 288,940.60, 433,281.30 and 131,087.80

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Solution

The fourth proportional to 288,940.60, 433,281.30 and 131,087.80 is: 196,572.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,940.60 : 433,281.30 = 131,087.80 : x
  2. Step 2: Convert to fraction form
    288,940.60/433,281.30 = 131,087.80/x
  3. Step 3: Cross multiply
    288,940.60x = 433,281.30 × 131,087.80
  4. Step 4: Simplify right side
    288,940.60x = 56,797,892,398.14
  5. Step 5: Solve for x
    x = 56,797,892,398.14/288,940.60
  6. Step 6: Final answer
    x = 196,572.90

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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.