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Finding the Fourth Proportional to 347,441.50, 479,469.27 and 188,465.50

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Solution

The fourth proportional to 347,441.50, 479,469.27 and 188,465.50 is: 260,082.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,441.50 : 479,469.27 = 188,465.50 : x
  2. Step 2: Convert to fraction form
    347,441.50/479,469.27 = 188,465.50/x
  3. Step 3: Cross multiply
    347,441.50x = 479,469.27 × 188,465.50
  4. Step 4: Simplify right side
    347,441.50x = 90,363,415,705.19
  5. Step 5: Solve for x
    x = 90,363,415,705.19/347,441.50
  6. Step 6: Final answer
    x = 260,082.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.