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Finding the Fourth Proportional to 355,248.80, 533,164.80 and 343,584.80

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Solution

The fourth proportional to 355,248.80, 533,164.80 and 343,584.80 is: 515,659.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,248.80 : 533,164.80 = 343,584.80 : x
  2. Step 2: Convert to fraction form
    355,248.80/533,164.80 = 343,584.80/x
  3. Step 3: Cross multiply
    355,248.80x = 533,164.80 × 343,584.80
  4. Step 4: Simplify right side
    355,248.80x = 183,187,321,175.04
  5. Step 5: Solve for x
    x = 183,187,321,175.04/355,248.80
  6. Step 6: Final answer
    x = 515,659.23

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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.