Home / 213,433.60-319,927.92-80,222.08

Finding the Fourth Proportional to 213,433.60, 319,927.92 and 80,222.08

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Solution

The fourth proportional to 213,433.60, 319,927.92 and 80,222.08 is: 120,249.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,433.60 : 319,927.92 = 80,222.08 : x
  2. Step 2: Convert to fraction form
    213,433.60/319,927.92 = 80,222.08/x
  3. Step 3: Cross multiply
    213,433.60x = 319,927.92 × 80,222.08
  4. Step 4: Simplify right side
    213,433.60x = 25,665,283,192.47
  5. Step 5: Solve for x
    x = 25,665,283,192.47/213,433.60
  6. Step 6: Final answer
    x = 120,249.50

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1.5x scale

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.