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Finding the Fourth Proportional to 288,450, 397,802.43 and 240,211.67

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Solution

The fourth proportional to 288,450, 397,802.43 and 240,211.67 is: 331,276.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,450 : 397,802.43 = 240,211.67 : x
  2. Step 2: Convert to fraction form
    288,450/397,802.43 = 240,211.67/x
  3. Step 3: Cross multiply
    288,450x = 397,802.43 × 240,211.67
  4. Step 4: Simplify right side
    288,450x = 95,556,784,051.35
  5. Step 5: Solve for x
    x = 95,556,784,051.35/288,450
  6. Step 6: Final answer
    x = 331,276.77

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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.