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Finding the Fourth Proportional to 316,212.39, 436,384.35 and 180,224.37

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Solution

The fourth proportional to 316,212.39, 436,384.35 and 180,224.37 is: 248,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,212.39 : 436,384.35 = 180,224.37 : x
  2. Step 2: Convert to fraction form
    316,212.39/436,384.35 = 180,224.37/x
  3. Step 3: Cross multiply
    316,212.39x = 436,384.35 × 180,224.37
  4. Step 4: Simplify right side
    316,212.39x = 78,647,094,556.61
  5. Step 5: Solve for x
    x = 78,647,094,556.61/316,212.39
  6. Step 6: Final answer
    x = 248,716.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.