Home / 280,658.23-421,302.83-112,297.33

Finding the Fourth Proportional to 280,658.23, 421,302.83 and 112,297.33

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Solution

The fourth proportional to 280,658.23, 421,302.83 and 112,297.33 is: 168,572.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,658.23 : 421,302.83 = 112,297.33 : x
  2. Step 2: Convert to fraction form
    280,658.23/421,302.83 = 112,297.33/x
  3. Step 3: Cross multiply
    280,658.23x = 421,302.83 × 112,297.33
  4. Step 4: Simplify right side
    280,658.23x = 47,311,180,262.44
  5. Step 5: Solve for x
    x = 47,311,180,262.44/280,658.23
  6. Step 6: Final answer
    x = 168,572.22

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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.