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Finding the Fourth Proportional to 343,367.60, 515,051.40 and 225,107.60

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Solution

The fourth proportional to 343,367.60, 515,051.40 and 225,107.60 is: 337,661.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,367.60 : 515,051.40 = 225,107.60 : x
  2. Step 2: Convert to fraction form
    343,367.60/515,051.40 = 225,107.60/x
  3. Step 3: Cross multiply
    343,367.60x = 515,051.40 × 225,107.60
  4. Step 4: Simplify right side
    343,367.60x = 115,941,984,530.64
  5. Step 5: Solve for x
    x = 115,941,984,530.64/343,367.60
  6. Step 6: Final answer
    x = 337,661.40

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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.