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Finding the Fourth Proportional to 440,673.60, 661,010.40 and 108,249.60

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Solution

The fourth proportional to 440,673.60, 661,010.40 and 108,249.60 is: 162,374.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,673.60 : 661,010.40 = 108,249.60 : x
  2. Step 2: Convert to fraction form
    440,673.60/661,010.40 = 108,249.60/x
  3. Step 3: Cross multiply
    440,673.60x = 661,010.40 × 108,249.60
  4. Step 4: Simplify right side
    440,673.60x = 71,554,111,395.84
  5. Step 5: Solve for x
    x = 71,554,111,395.84/440,673.60
  6. Step 6: Final answer
    x = 162,374.40

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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.