Home / 331,128.96-496,304.40-153,260.28

Finding the Fourth Proportional to 331,128.96, 496,304.40 and 153,260.28

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Solution

The fourth proportional to 331,128.96, 496,304.40 and 153,260.28 is: 229,710.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,128.96 : 496,304.40 = 153,260.28 : x
  2. Step 2: Convert to fraction form
    331,128.96/496,304.40 = 153,260.28/x
  3. Step 3: Cross multiply
    331,128.96x = 496,304.40 × 153,260.28
  4. Step 4: Simplify right side
    331,128.96x = 76,063,751,309.23
  5. Step 5: Solve for x
    x = 76,063,751,309.23/331,128.96
  6. Step 6: Final answer
    x = 229,710.36

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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.