Home / 306,942.75-423,585.50-177,890.85

Finding the Fourth Proportional to 306,942.75, 423,585.50 and 177,890.85

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Solution

The fourth proportional to 306,942.75, 423,585.50 and 177,890.85 is: 245,491.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,942.75 : 423,585.50 = 177,890.85 : x
  2. Step 2: Convert to fraction form
    306,942.75/423,585.50 = 177,890.85/x
  3. Step 3: Cross multiply
    306,942.75x = 423,585.50 × 177,890.85
  4. Step 4: Simplify right side
    306,942.75x = 75,351,983,753.22
  5. Step 5: Solve for x
    x = 75,351,983,753.22/306,942.75
  6. Step 6: Final answer
    x = 245,491.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.