Home / 378,899.56-522,848.28-242,693.20

Finding the Fourth Proportional to 378,899.56, 522,848.28 and 242,693.20

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Solution

The fourth proportional to 378,899.56, 522,848.28 and 242,693.20 is: 334,895.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,899.56 : 522,848.28 = 242,693.20 : x
  2. Step 2: Convert to fraction form
    378,899.56/522,848.28 = 242,693.20/x
  3. Step 3: Cross multiply
    378,899.56x = 522,848.28 × 242,693.20
  4. Step 4: Simplify right side
    378,899.56x = 126,891,722,187.70
  5. Step 5: Solve for x
    x = 126,891,722,187.70/378,899.56
  6. Step 6: Final answer
    x = 334,895.41

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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.