Home / 300,828.24-415,159.56-166,689.36

Finding the Fourth Proportional to 300,828.24, 415,159.56 and 166,689.36

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Solution

The fourth proportional to 300,828.24, 415,159.56 and 166,689.36 is: 230,040.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,828.24 : 415,159.56 = 166,689.36 : x
  2. Step 2: Convert to fraction form
    300,828.24/415,159.56 = 166,689.36/x
  3. Step 3: Cross multiply
    300,828.24x = 415,159.56 × 166,689.36
  4. Step 4: Simplify right side
    300,828.24x = 69,202,681,354.28
  5. Step 5: Solve for x
    x = 69,202,681,354.28/300,828.24
  6. Step 6: Final answer
    x = 230,040.51

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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.