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Finding the Fourth Proportional to 443,907.12, 666,028.52 and 266,537.52

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Solution

The fourth proportional to 443,907.12, 666,028.52 and 266,537.52 is: 399,907.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,907.12 : 666,028.52 = 266,537.52 : x
  2. Step 2: Convert to fraction form
    443,907.12/666,028.52 = 266,537.52/x
  3. Step 3: Cross multiply
    443,907.12x = 666,028.52 × 266,537.52
  4. Step 4: Simplify right side
    443,907.12x = 177,521,589,970.07
  5. Step 5: Solve for x
    x = 177,521,589,970.07/443,907.12
  6. Step 6: Final answer
    x = 399,907.06

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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.