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Finding the Fourth Proportional to 445,075.83, 667,644.53 and 178,836.66

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Solution

The fourth proportional to 445,075.83, 667,644.53 and 178,836.66 is: 268,267.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,075.83 : 667,644.53 = 178,836.66 : x
  2. Step 2: Convert to fraction form
    445,075.83/667,644.53 = 178,836.66/x
  3. Step 3: Cross multiply
    445,075.83x = 667,644.53 × 178,836.66
  4. Step 4: Simplify right side
    445,075.83x = 119,399,316,918.29
  5. Step 5: Solve for x
    x = 119,399,316,918.29/445,075.83
  6. Step 6: Final answer
    x = 268,267.36

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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.