Home / 401,787.64-554,548.98-231,998.68

Finding the Fourth Proportional to 401,787.64, 554,548.98 and 231,998.68

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Solution

The fourth proportional to 401,787.64, 554,548.98 and 231,998.68 is: 320,205.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,787.64 : 554,548.98 = 231,998.68 : x
  2. Step 2: Convert to fraction form
    401,787.64/554,548.98 = 231,998.68/x
  3. Step 3: Cross multiply
    401,787.64x = 554,548.98 × 231,998.68
  4. Step 4: Simplify right side
    401,787.64x = 128,654,631,355.35
  5. Step 5: Solve for x
    x = 128,654,631,355.35/401,787.64
  6. Step 6: Final answer
    x = 320,205.55

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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.