Home / 325,678.32-488,458.92-115,317.36

Finding the Fourth Proportional to 325,678.32, 488,458.92 and 115,317.36

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Solution

The fourth proportional to 325,678.32, 488,458.92 and 115,317.36 is: 172,955.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,678.32 : 488,458.92 = 115,317.36 : x
  2. Step 2: Convert to fraction form
    325,678.32/488,458.92 = 115,317.36/x
  3. Step 3: Cross multiply
    325,678.32x = 488,458.92 × 115,317.36
  4. Step 4: Simplify right side
    325,678.32x = 56,327,793,122.85
  5. Step 5: Solve for x
    x = 56,327,793,122.85/325,678.32
  6. Step 6: Final answer
    x = 172,955.30

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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.