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Finding the Fourth Proportional to 378,504.36, 567,756.56 and 153,986.88

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Solution

The fourth proportional to 378,504.36, 567,756.56 and 153,986.88 is: 230,980.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,504.36 : 567,756.56 = 153,986.88 : x
  2. Step 2: Convert to fraction form
    378,504.36/567,756.56 = 153,986.88/x
  3. Step 3: Cross multiply
    378,504.36x = 567,756.56 × 153,986.88
  4. Step 4: Simplify right side
    378,504.36x = 87,427,061,273.93
  5. Step 5: Solve for x
    x = 87,427,061,273.93/378,504.36
  6. Step 6: Final answer
    x = 230,980.33

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1.5x scale

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.