Home / 245,078.10-367,617.15-139,907.70

Finding the Fourth Proportional to 245,078.10, 367,617.15 and 139,907.70

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Solution

The fourth proportional to 245,078.10, 367,617.15 and 139,907.70 is: 209,861.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,078.10 : 367,617.15 = 139,907.70 : x
  2. Step 2: Convert to fraction form
    245,078.10/367,617.15 = 139,907.70/x
  3. Step 3: Cross multiply
    245,078.10x = 367,617.15 × 139,907.70
  4. Step 4: Simplify right side
    245,078.10x = 51,432,469,937.06
  5. Step 5: Solve for x
    x = 51,432,469,937.06/245,078.10
  6. Step 6: Final answer
    x = 209,861.55

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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.