Home / 378,731.89-522,839.41-235,538.07

Finding the Fourth Proportional to 378,731.89, 522,839.41 and 235,538.07

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Solution

The fourth proportional to 378,731.89, 522,839.41 and 235,538.07 is: 325,160.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,731.89 : 522,839.41 = 235,538.07 : x
  2. Step 2: Convert to fraction form
    378,731.89/522,839.41 = 235,538.07/x
  3. Step 3: Cross multiply
    378,731.89x = 522,839.41 × 235,538.07
  4. Step 4: Simplify right side
    378,731.89x = 123,148,584,373.65
  5. Step 5: Solve for x
    x = 123,148,584,373.65/378,731.89
  6. Step 6: Final answer
    x = 325,160.32

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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.