Home / 212,960.40-319,003.20-146,475.60

Finding the Fourth Proportional to 212,960.40, 319,003.20 and 146,475.60

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Solution

The fourth proportional to 212,960.40, 319,003.20 and 146,475.60 is: 219,412.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,960.40 : 319,003.20 = 146,475.60 : x
  2. Step 2: Convert to fraction form
    212,960.40/319,003.20 = 146,475.60/x
  3. Step 3: Cross multiply
    212,960.40x = 319,003.20 × 146,475.60
  4. Step 4: Simplify right side
    212,960.40x = 46,726,185,121.92
  5. Step 5: Solve for x
    x = 46,726,185,121.92/212,960.40
  6. Step 6: Final answer
    x = 219,412.55

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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.