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Finding the Fourth Proportional to 229,209.77, 343,736.78 and 79,415.10

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Solution

The fourth proportional to 229,209.77, 343,736.78 and 79,415.10 is: 119,095.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,209.77 : 343,736.78 = 79,415.10 : x
  2. Step 2: Convert to fraction form
    229,209.77/343,736.78 = 79,415.10/x
  3. Step 3: Cross multiply
    229,209.77x = 343,736.78 × 79,415.10
  4. Step 4: Simplify right side
    229,209.77x = 27,297,890,807.01
  5. Step 5: Solve for x
    x = 27,297,890,807.01/229,209.77
  6. Step 6: Final answer
    x = 119,095.67

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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.