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Finding the Fourth Proportional to 323,446.80, 484,003.80 and 218,470.80

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Solution

The fourth proportional to 323,446.80, 484,003.80 and 218,470.80 is: 326,918.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,446.80 : 484,003.80 = 218,470.80 : x
  2. Step 2: Convert to fraction form
    323,446.80/484,003.80 = 218,470.80/x
  3. Step 3: Cross multiply
    323,446.80x = 484,003.80 × 218,470.80
  4. Step 4: Simplify right side
    323,446.80x = 105,740,697,389.04
  5. Step 5: Solve for x
    x = 105,740,697,389.04/323,446.80
  6. Step 6: Final answer
    x = 326,918.36

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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.