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Finding the Fourth Proportional to 229,137.32, 343,623.96 and 79,337.40

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Solution

The fourth proportional to 229,137.32, 343,623.96 and 79,337.40 is: 118,977.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,137.32 : 343,623.96 = 79,337.40 : x
  2. Step 2: Convert to fraction form
    229,137.32/343,623.96 = 79,337.40/x
  3. Step 3: Cross multiply
    229,137.32x = 343,623.96 × 79,337.40
  4. Step 4: Simplify right side
    229,137.32x = 27,262,231,564.10
  5. Step 5: Solve for x
    x = 27,262,231,564.10/229,137.32
  6. Step 6: Final answer
    x = 118,977.70

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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.