Home / 399,182.85-598,782.78-143,032.15

Finding the Fourth Proportional to 399,182.85, 598,782.78 and 143,032.15

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Solution

The fourth proportional to 399,182.85, 598,782.78 and 143,032.15 is: 214,551.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,182.85 : 598,782.78 = 143,032.15 : x
  2. Step 2: Convert to fraction form
    399,182.85/598,782.78 = 143,032.15/x
  3. Step 3: Cross multiply
    399,182.85x = 598,782.78 × 143,032.15
  4. Step 4: Simplify right side
    399,182.85x = 85,645,188,406.38
  5. Step 5: Solve for x
    x = 85,645,188,406.38/399,182.85
  6. Step 6: Final answer
    x = 214,551.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.