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Finding the Fourth Proportional to 229,135.82, 343,621.71 and 79,335.90

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Solution

The fourth proportional to 229,135.82, 343,621.71 and 79,335.90 is: 118,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,135.82 : 343,621.71 = 79,335.90 : x
  2. Step 2: Convert to fraction form
    229,135.82/343,621.71 = 79,335.90/x
  3. Step 3: Cross multiply
    229,135.82x = 343,621.71 × 79,335.90
  4. Step 4: Simplify right side
    229,135.82x = 27,261,537,622.39
  5. Step 5: Solve for x
    x = 27,261,537,622.39/229,135.82
  6. Step 6: Final answer
    x = 118,975.45

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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.