Home / 318,781.37-477,619.84-223,830.95

Finding the Fourth Proportional to 318,781.37, 477,619.84 and 223,830.95

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Solution

The fourth proportional to 318,781.37, 477,619.84 and 223,830.95 is: 335,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,781.37 : 477,619.84 = 223,830.95 : x
  2. Step 2: Convert to fraction form
    318,781.37/477,619.84 = 223,830.95/x
  3. Step 3: Cross multiply
    318,781.37x = 477,619.84 × 223,830.95
  4. Step 4: Simplify right side
    318,781.37x = 106,906,100,417.74
  5. Step 5: Solve for x
    x = 106,906,100,417.74/318,781.37
  6. Step 6: Final answer
    x = 335,358.68

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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.