Home / 312,621.28-468,171.60-146,456.80

Finding the Fourth Proportional to 312,621.28, 468,171.60 and 146,456.80

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Solution

The fourth proportional to 312,621.28, 468,171.60 and 146,456.80 is: 219,329.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,621.28 : 468,171.60 = 146,456.80 : x
  2. Step 2: Convert to fraction form
    312,621.28/468,171.60 = 146,456.80/x
  3. Step 3: Cross multiply
    312,621.28x = 468,171.60 × 146,456.80
  4. Step 4: Simplify right side
    312,621.28x = 68,566,914,386.88
  5. Step 5: Solve for x
    x = 68,566,914,386.88/312,621.28
  6. Step 6: Final answer
    x = 219,329.01

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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.