Home / 320,945.05-442,911.12-175,757

Finding the Fourth Proportional to 320,945.05, 442,911.12 and 175,757

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Solution

The fourth proportional to 320,945.05, 442,911.12 and 175,757 is: 242,548.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,945.05 : 442,911.12 = 175,757 : x
  2. Step 2: Convert to fraction form
    320,945.05/442,911.12 = 175,757/x
  3. Step 3: Cross multiply
    320,945.05x = 442,911.12 × 175,757
  4. Step 4: Simplify right side
    320,945.05x = 77,844,729,717.84
  5. Step 5: Solve for x
    x = 77,844,729,717.84/320,945.05
  6. Step 6: Final answer
    x = 242,548.47

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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.