Home / 378,731.64-522,839.06-235,537.82

Finding the Fourth Proportional to 378,731.64, 522,839.06 and 235,537.82

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Solution

The fourth proportional to 378,731.64, 522,839.06 and 235,537.82 is: 325,159.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,731.64 : 522,839.06 = 235,537.82 : x
  2. Step 2: Convert to fraction form
    378,731.64/522,839.06 = 235,537.82/x
  3. Step 3: Cross multiply
    378,731.64x = 522,839.06 × 235,537.82
  4. Step 4: Simplify right side
    378,731.64x = 123,148,372,403.25
  5. Step 5: Solve for x
    x = 123,148,372,403.25/378,731.64
  6. Step 6: Final answer
    x = 325,159.98

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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.