Home / 320,486.46-442,326.78-193,162.20

Finding the Fourth Proportional to 320,486.46, 442,326.78 and 193,162.20

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Solution

The fourth proportional to 320,486.46, 442,326.78 and 193,162.20 is: 266,597.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,486.46 : 442,326.78 = 193,162.20 : x
  2. Step 2: Convert to fraction form
    320,486.46/442,326.78 = 193,162.20/x
  3. Step 3: Cross multiply
    320,486.46x = 442,326.78 × 193,162.20
  4. Step 4: Simplify right side
    320,486.46x = 85,440,813,943.72
  5. Step 5: Solve for x
    x = 85,440,813,943.72/320,486.46
  6. Step 6: Final answer
    x = 266,597.27

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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.