Home / 289,015.20-433,514.70-131,243.40

Finding the Fourth Proportional to 289,015.20, 433,514.70 and 131,243.40

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Solution

The fourth proportional to 289,015.20, 433,514.70 and 131,243.40 is: 196,861.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,015.20 : 433,514.70 = 131,243.40 : x
  2. Step 2: Convert to fraction form
    289,015.20/433,514.70 = 131,243.40/x
  3. Step 3: Cross multiply
    289,015.20x = 433,514.70 × 131,243.40
  4. Step 4: Simplify right side
    289,015.20x = 56,895,943,177.98
  5. Step 5: Solve for x
    x = 56,895,943,177.98/289,015.20
  6. Step 6: Final answer
    x = 196,861.42

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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.