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Finding the Fourth Proportional to 298,525.60, 447,788.40 and 204,047.20

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Solution

The fourth proportional to 298,525.60, 447,788.40 and 204,047.20 is: 306,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,525.60 : 447,788.40 = 204,047.20 : x
  2. Step 2: Convert to fraction form
    298,525.60/447,788.40 = 204,047.20/x
  3. Step 3: Cross multiply
    298,525.60x = 447,788.40 × 204,047.20
  4. Step 4: Simplify right side
    298,525.60x = 91,369,969,212.48
  5. Step 5: Solve for x
    x = 91,369,969,212.48/298,525.60
  6. Step 6: Final answer
    x = 306,070.80

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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.