Home / 320,349.78-442,043.73-177,089.94

Finding the Fourth Proportional to 320,349.78, 442,043.73 and 177,089.94

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Solution

The fourth proportional to 320,349.78, 442,043.73 and 177,089.94 is: 244,362.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,349.78 : 442,043.73 = 177,089.94 : x
  2. Step 2: Convert to fraction form
    320,349.78/442,043.73 = 177,089.94/x
  3. Step 3: Cross multiply
    320,349.78x = 442,043.73 × 177,089.94
  4. Step 4: Simplify right side
    320,349.78x = 78,281,497,623.08
  5. Step 5: Solve for x
    x = 78,281,497,623.08/320,349.78
  6. Step 6: Final answer
    x = 244,362.58

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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.