Home / 320,729.84-442,608.04-177,499.76

Finding the Fourth Proportional to 320,729.84, 442,608.04 and 177,499.76

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Solution

The fourth proportional to 320,729.84, 442,608.04 and 177,499.76 is: 244,950.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,729.84 : 442,608.04 = 177,499.76 : x
  2. Step 2: Convert to fraction form
    320,729.84/442,608.04 = 177,499.76/x
  3. Step 3: Cross multiply
    320,729.84x = 442,608.04 × 177,499.76
  4. Step 4: Simplify right side
    320,729.84x = 78,562,820,874.07
  5. Step 5: Solve for x
    x = 78,562,820,874.07/320,729.84
  6. Step 6: Final answer
    x = 244,950.15

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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.