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Finding the Fourth Proportional to 323,564.20, 485,346.30 and 165,740.20

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Solution

The fourth proportional to 323,564.20, 485,346.30 and 165,740.20 is: 248,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,564.20 : 485,346.30 = 165,740.20 : x
  2. Step 2: Convert to fraction form
    323,564.20/485,346.30 = 165,740.20/x
  3. Step 3: Cross multiply
    323,564.20x = 485,346.30 × 165,740.20
  4. Step 4: Simplify right side
    323,564.20x = 80,441,392,831.26
  5. Step 5: Solve for x
    x = 80,441,392,831.26/323,564.20
  6. Step 6: Final answer
    x = 248,610.30

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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.