Home / 318,018.96-438,856.38-174,778.56

Finding the Fourth Proportional to 318,018.96, 438,856.38 and 174,778.56

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Solution

The fourth proportional to 318,018.96, 438,856.38 and 174,778.56 is: 241,189.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,018.96 : 438,856.38 = 174,778.56 : x
  2. Step 2: Convert to fraction form
    318,018.96/438,856.38 = 174,778.56/x
  3. Step 3: Cross multiply
    318,018.96x = 438,856.38 × 174,778.56
  4. Step 4: Simplify right side
    318,018.96x = 76,702,686,143.21
  5. Step 5: Solve for x
    x = 76,702,686,143.21/318,018.96
  6. Step 6: Final answer
    x = 241,189.04

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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.