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Finding the Fourth Proportional to 240,628.10, 360,942.15 and 219,632.90

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Solution

The fourth proportional to 240,628.10, 360,942.15 and 219,632.90 is: 329,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,628.10 : 360,942.15 = 219,632.90 : x
  2. Step 2: Convert to fraction form
    240,628.10/360,942.15 = 219,632.90/x
  3. Step 3: Cross multiply
    240,628.10x = 360,942.15 × 219,632.90
  4. Step 4: Simplify right side
    240,628.10x = 79,274,771,136.74
  5. Step 5: Solve for x
    x = 79,274,771,136.74/240,628.10
  6. Step 6: Final answer
    x = 329,449.35

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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.