Home / 338,984.04-508,475.55-139,163.66

Finding the Fourth Proportional to 338,984.04, 508,475.55 and 139,163.66

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Solution

The fourth proportional to 338,984.04, 508,475.55 and 139,163.66 is: 208,745.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,984.04 : 508,475.55 = 139,163.66 : x
  2. Step 2: Convert to fraction form
    338,984.04/508,475.55 = 139,163.66/x
  3. Step 3: Cross multiply
    338,984.04x = 508,475.55 × 139,163.66
  4. Step 4: Simplify right side
    338,984.04x = 70,761,319,829.70
  5. Step 5: Solve for x
    x = 70,761,319,829.70/338,984.04
  6. Step 6: Final answer
    x = 208,745.28

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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.