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Finding the Fourth Proportional to 355,287,700.80, 533,827,346.40 and 225,957,268.80

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Solution

The fourth proportional to 355,287,700.80, 533,827,346.40 and 225,957,268.80 is: 339,505,614.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,287,700.80 : 533,827,346.40 = 225,957,268.80 : x
  2. Step 2: Convert to fraction form
    355,287,700.80/533,827,346.40 = 225,957,268.80/x
  3. Step 3: Cross multiply
    355,287,700.80x = 533,827,346.40 × 225,957,268.80
  4. Step 4: Simplify right side
    355,287,700.80x = 120,622,169,203,295,520
  5. Step 5: Solve for x
    x = 120,622,169,203,295,520/355,287,700.80
  6. Step 6: Final answer
    x = 339,505,614.55

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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.