Home / 385,976.53-532,641.77-216,216.73

Finding the Fourth Proportional to 385,976.53, 532,641.77 and 216,216.73

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Solution

The fourth proportional to 385,976.53, 532,641.77 and 216,216.73 is: 298,375.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,976.53 : 532,641.77 = 216,216.73 : x
  2. Step 2: Convert to fraction form
    385,976.53/532,641.77 = 216,216.73/x
  3. Step 3: Cross multiply
    385,976.53x = 532,641.77 × 216,216.73
  4. Step 4: Simplify right side
    385,976.53x = 115,166,058,026.52
  5. Step 5: Solve for x
    x = 115,166,058,026.52/385,976.53
  6. Step 6: Final answer
    x = 298,375.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.