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Finding the Fourth Proportional to 443,866.50, 665,967.45 and 266,497.26

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Solution

The fourth proportional to 443,866.50, 665,967.45 and 266,497.26 is: 399,846.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,866.50 : 665,967.45 = 266,497.26 : x
  2. Step 2: Convert to fraction form
    443,866.50/665,967.45 = 266,497.26/x
  3. Step 3: Cross multiply
    443,866.50x = 665,967.45 × 266,497.26
  4. Step 4: Simplify right side
    443,866.50x = 177,478,500,674.19
  5. Step 5: Solve for x
    x = 177,478,500,674.19/443,866.50
  6. Step 6: Final answer
    x = 399,846.58

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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.