Home / 285,377.10-428,069.82-135,632.67

Finding the Fourth Proportional to 285,377.10, 428,069.82 and 135,632.67

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Solution

The fourth proportional to 285,377.10, 428,069.82 and 135,632.67 is: 203,450.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,377.10 : 428,069.82 = 135,632.67 : x
  2. Step 2: Convert to fraction form
    285,377.10/428,069.82 = 135,632.67/x
  3. Step 3: Cross multiply
    285,377.10x = 428,069.82 × 135,632.67
  4. Step 4: Simplify right side
    285,377.10x = 58,060,252,633.02
  5. Step 5: Solve for x
    x = 58,060,252,633.02/285,377.10
  6. Step 6: Final answer
    x = 203,450.99

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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.