Home / 289,123.32-433,725.30-131,391.48

Finding the Fourth Proportional to 289,123.32, 433,725.30 and 131,391.48

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Solution

The fourth proportional to 289,123.32, 433,725.30 and 131,391.48 is: 197,105.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,123.32 : 433,725.30 = 131,391.48 : x
  2. Step 2: Convert to fraction form
    289,123.32/433,725.30 = 131,391.48/x
  3. Step 3: Cross multiply
    289,123.32x = 433,725.30 × 131,391.48
  4. Step 4: Simplify right side
    289,123.32x = 56,987,809,080.44
  5. Step 5: Solve for x
    x = 56,987,809,080.44/289,123.32
  6. Step 6: Final answer
    x = 197,105.54

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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.