Home / 320,350.78-442,045.11-177,090.94

Finding the Fourth Proportional to 320,350.78, 442,045.11 and 177,090.94

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Solution

The fourth proportional to 320,350.78, 442,045.11 and 177,090.94 is: 244,363.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,350.78 : 442,045.11 = 177,090.94 : x
  2. Step 2: Convert to fraction form
    320,350.78/442,045.11 = 177,090.94/x
  3. Step 3: Cross multiply
    320,350.78x = 442,045.11 × 177,090.94
  4. Step 4: Simplify right side
    320,350.78x = 78,282,184,052.30
  5. Step 5: Solve for x
    x = 78,282,184,052.30/320,350.78
  6. Step 6: Final answer
    x = 244,363.96

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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.