Home / 368,837.84-552,645.30-128,822.79

Finding the Fourth Proportional to 368,837.84, 552,645.30 and 128,822.79

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Solution

The fourth proportional to 368,837.84, 552,645.30 and 128,822.79 is: 193,020.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,837.84 : 552,645.30 = 128,822.79 : x
  2. Step 2: Convert to fraction form
    368,837.84/552,645.30 = 128,822.79/x
  3. Step 3: Cross multiply
    368,837.84x = 552,645.30 × 128,822.79
  4. Step 4: Simplify right side
    368,837.84x = 71,193,309,426.39
  5. Step 5: Solve for x
    x = 71,193,309,426.39/368,837.84
  6. Step 6: Final answer
    x = 193,020.62

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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.