Home / 320,977.50-442,948.67-177,737.54

Finding the Fourth Proportional to 320,977.50, 442,948.67 and 177,737.54

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Solution

The fourth proportional to 320,977.50, 442,948.67 and 177,737.54 is: 245,277.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,977.50 : 442,948.67 = 177,737.54 : x
  2. Step 2: Convert to fraction form
    320,977.50/442,948.67 = 177,737.54/x
  3. Step 3: Cross multiply
    320,977.50x = 442,948.67 × 177,737.54
  4. Step 4: Simplify right side
    320,977.50x = 78,728,604,515.16
  5. Step 5: Solve for x
    x = 78,728,604,515.16/320,977.50
  6. Step 6: Final answer
    x = 245,277.65

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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.