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Finding the Fourth Proportional to 441,090.60, 660,906.30 and 253,775.40

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Solution

The fourth proportional to 441,090.60, 660,906.30 and 253,775.40 is: 380,243.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,090.60 : 660,906.30 = 253,775.40 : x
  2. Step 2: Convert to fraction form
    441,090.60/660,906.30 = 253,775.40/x
  3. Step 3: Cross multiply
    441,090.60x = 660,906.30 × 253,775.40
  4. Step 4: Simplify right side
    441,090.60x = 167,721,760,645.02
  5. Step 5: Solve for x
    x = 167,721,760,645.02/441,090.60
  6. Step 6: Final answer
    x = 380,243.33

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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.