Home / 320,882.58-442,678.91-193,487.40

Finding the Fourth Proportional to 320,882.58, 442,678.91 and 193,487.40

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Solution

The fourth proportional to 320,882.58, 442,678.91 and 193,487.40 is: 266,928.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,882.58 : 442,678.91 = 193,487.40 : x
  2. Step 2: Convert to fraction form
    320,882.58/442,678.91 = 193,487.40/x
  3. Step 3: Cross multiply
    320,882.58x = 442,678.91 × 193,487.40
  4. Step 4: Simplify right side
    320,882.58x = 85,652,790,363.30
  5. Step 5: Solve for x
    x = 85,652,790,363.30/320,882.58
  6. Step 6: Final answer
    x = 266,928.76

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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.