Home / 317,334.24-475,379.28-139,419.36

Finding the Fourth Proportional to 317,334.24, 475,379.28 and 139,419.36

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Solution

The fourth proportional to 317,334.24, 475,379.28 and 139,419.36 is: 208,855.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,334.24 : 475,379.28 = 139,419.36 : x
  2. Step 2: Convert to fraction form
    317,334.24/475,379.28 = 139,419.36/x
  3. Step 3: Cross multiply
    317,334.24x = 475,379.28 × 139,419.36
  4. Step 4: Simplify right side
    317,334.24x = 66,277,074,974.86
  5. Step 5: Solve for x
    x = 66,277,074,974.86/317,334.24
  6. Step 6: Final answer
    x = 208,855.73

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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.