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Finding the Fourth Proportional to 404,265.20, 606,484.20 and 123,810.80

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Solution

The fourth proportional to 404,265.20, 606,484.20 and 123,810.80 is: 185,742.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,265.20 : 606,484.20 = 123,810.80 : x
  2. Step 2: Convert to fraction form
    404,265.20/606,484.20 = 123,810.80/x
  3. Step 3: Cross multiply
    404,265.20x = 606,484.20 × 123,810.80
  4. Step 4: Simplify right side
    404,265.20x = 75,089,293,989.36
  5. Step 5: Solve for x
    x = 75,089,293,989.36/404,265.20
  6. Step 6: Final answer
    x = 185,742.66

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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.