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Finding the Fourth Proportional to 481,651.68, 664,650.08 and 266,779.20

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Solution

The fourth proportional to 481,651.68, 664,650.08 and 266,779.20 is: 368,139.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,651.68 : 664,650.08 = 266,779.20 : x
  2. Step 2: Convert to fraction form
    481,651.68/664,650.08 = 266,779.20/x
  3. Step 3: Cross multiply
    481,651.68x = 664,650.08 × 266,779.20
  4. Step 4: Simplify right side
    481,651.68x = 177,314,816,622.34
  5. Step 5: Solve for x
    x = 177,314,816,622.34/481,651.68
  6. Step 6: Final answer
    x = 368,139.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.