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Finding the Fourth Proportional to 298,453.22, 447,398.40 and 148,551.80

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Solution

The fourth proportional to 298,453.22, 447,398.40 and 148,551.80 is: 222,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,453.22 : 447,398.40 = 148,551.80 : x
  2. Step 2: Convert to fraction form
    298,453.22/447,398.40 = 148,551.80/x
  3. Step 3: Cross multiply
    298,453.22x = 447,398.40 × 148,551.80
  4. Step 4: Simplify right side
    298,453.22x = 66,461,835,957.20
  5. Step 5: Solve for x
    x = 66,461,835,957.20/298,453.22
  6. Step 6: Final answer
    x = 222,687.62

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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.