Home / 312,815.53-469,227.90-216,657.92

Finding the Fourth Proportional to 312,815.53, 469,227.90 and 216,657.92

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Solution

The fourth proportional to 312,815.53, 469,227.90 and 216,657.92 is: 324,990.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,815.53 : 469,227.90 = 216,657.92 : x
  2. Step 2: Convert to fraction form
    312,815.53/469,227.90 = 216,657.92/x
  3. Step 3: Cross multiply
    312,815.53x = 469,227.90 × 216,657.92
  4. Step 4: Simplify right side
    312,815.53x = 101,661,942,805.51
  5. Step 5: Solve for x
    x = 101,661,942,805.51/312,815.53
  6. Step 6: Final answer
    x = 324,990.08

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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.