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Finding the Fourth Proportional to 539,138.80, 808,999.80 and 223,627.60

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Solution

The fourth proportional to 539,138.80, 808,999.80 and 223,627.60 is: 335,562.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,138.80 : 808,999.80 = 223,627.60 : x
  2. Step 2: Convert to fraction form
    539,138.80/808,999.80 = 223,627.60/x
  3. Step 3: Cross multiply
    539,138.80x = 808,999.80 × 223,627.60
  4. Step 4: Simplify right side
    539,138.80x = 180,914,683,674.48
  5. Step 5: Solve for x
    x = 180,914,683,674.48/539,138.80
  6. Step 6: Final answer
    x = 335,562.35

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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.