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Finding the Fourth Proportional to 444,389.78, 666,684.68 and 140,802.20

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Solution

The fourth proportional to 444,389.78, 666,684.68 and 140,802.20 is: 211,234.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,389.78 : 666,684.68 = 140,802.20 : x
  2. Step 2: Convert to fraction form
    444,389.78/666,684.68 = 140,802.20/x
  3. Step 3: Cross multiply
    444,389.78x = 666,684.68 × 140,802.20
  4. Step 4: Simplify right side
    444,389.78x = 93,870,669,650.30
  5. Step 5: Solve for x
    x = 93,870,669,650.30/444,389.78
  6. Step 6: Final answer
    x = 211,234.99

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1.5x scale

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.