Home / 252,579.49-378,612.86-215,710.76

Finding the Fourth Proportional to 252,579.49, 378,612.86 and 215,710.76

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Solution

The fourth proportional to 252,579.49, 378,612.86 and 215,710.76 is: 323,347.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,579.49 : 378,612.86 = 215,710.76 : x
  2. Step 2: Convert to fraction form
    252,579.49/378,612.86 = 215,710.76/x
  3. Step 3: Cross multiply
    252,579.49x = 378,612.86 × 215,710.76
  4. Step 4: Simplify right side
    252,579.49x = 81,670,867,644.35
  5. Step 5: Solve for x
    x = 81,670,867,644.35/252,579.49
  6. Step 6: Final answer
    x = 323,347.19

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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.