Home / 312,948.48-469,481.08-142,182.15

Finding the Fourth Proportional to 312,948.48, 469,481.08 and 142,182.15

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Solution

The fourth proportional to 312,948.48, 469,481.08 and 142,182.15 is: 213,299.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,948.48 : 469,481.08 = 142,182.15 : x
  2. Step 2: Convert to fraction form
    312,948.48/469,481.08 = 142,182.15/x
  3. Step 3: Cross multiply
    312,948.48x = 469,481.08 × 142,182.15
  4. Step 4: Simplify right side
    312,948.48x = 66,751,829,338.72
  5. Step 5: Solve for x
    x = 66,751,829,338.72/312,948.48
  6. Step 6: Final answer
    x = 213,299.74

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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.