Home / 320,225.60-480,348.12-109,860.56

Finding the Fourth Proportional to 320,225.60, 480,348.12 and 109,860.56

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Solution

The fourth proportional to 320,225.60, 480,348.12 and 109,860.56 is: 164,794.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,225.60 : 480,348.12 = 109,860.56 : x
  2. Step 2: Convert to fraction form
    320,225.60/480,348.12 = 109,860.56/x
  3. Step 3: Cross multiply
    320,225.60x = 480,348.12 × 109,860.56
  4. Step 4: Simplify right side
    320,225.60x = 52,771,313,458.15
  5. Step 5: Solve for x
    x = 52,771,313,458.15/320,225.60
  6. Step 6: Final answer
    x = 164,794.17

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1.5x scale

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.