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Finding the Fourth Proportional to 539,153.80, 808,439.10 and 223,642.60

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Solution

The fourth proportional to 539,153.80, 808,439.10 and 223,642.60 is: 335,342.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,153.80 : 808,439.10 = 223,642.60 : x
  2. Step 2: Convert to fraction form
    539,153.80/808,439.10 = 223,642.60/x
  3. Step 3: Cross multiply
    539,153.80x = 808,439.10 × 223,642.60
  4. Step 4: Simplify right side
    539,153.80x = 180,801,422,265.66
  5. Step 5: Solve for x
    x = 180,801,422,265.66/539,153.80
  6. Step 6: Final answer
    x = 335,342.94

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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.