Home / 320,517.40-442,317.90-177,273.76

Finding the Fourth Proportional to 320,517.40, 442,317.90 and 177,273.76

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Solution

The fourth proportional to 320,517.40, 442,317.90 and 177,273.76 is: 244,639.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,517.40 : 442,317.90 = 177,273.76 : x
  2. Step 2: Convert to fraction form
    320,517.40/442,317.90 = 177,273.76/x
  3. Step 3: Cross multiply
    320,517.40x = 442,317.90 × 177,273.76
  4. Step 4: Simplify right side
    320,517.40x = 78,411,357,248.30
  5. Step 5: Solve for x
    x = 78,411,357,248.30/320,517.40
  6. Step 6: Final answer
    x = 244,639.94

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1.5x scale

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.