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Finding the Fourth Proportional to 440,396.20, 660,464.70 and 124,880.68

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Solution

The fourth proportional to 440,396.20, 660,464.70 and 124,880.68 is: 187,284.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,396.20 : 660,464.70 = 124,880.68 : x
  2. Step 2: Convert to fraction form
    440,396.20/660,464.70 = 124,880.68/x
  3. Step 3: Cross multiply
    440,396.20x = 660,464.70 × 124,880.68
  4. Step 4: Simplify right side
    440,396.20x = 82,479,280,852.00
  5. Step 5: Solve for x
    x = 82,479,280,852.00/440,396.20
  6. Step 6: Final answer
    x = 187,284.27

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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.