Home / 320,650.81-442,429.18-193,323.67

Finding the Fourth Proportional to 320,650.81, 442,429.18 and 193,323.67

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Solution

The fourth proportional to 320,650.81, 442,429.18 and 193,323.67 is: 266,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,650.81 : 442,429.18 = 193,323.67 : x
  2. Step 2: Convert to fraction form
    320,650.81/442,429.18 = 193,323.67/x
  3. Step 3: Cross multiply
    320,650.81x = 442,429.18 × 193,323.67
  4. Step 4: Simplify right side
    320,650.81x = 85,532,032,792.69
  5. Step 5: Solve for x
    x = 85,532,032,792.69/320,650.81
  6. Step 6: Final answer
    x = 266,745.10

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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.