Home / 393,979.96-591,028.24-144,642.52

Finding the Fourth Proportional to 393,979.96, 591,028.24 and 144,642.52

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Solution

The fourth proportional to 393,979.96, 591,028.24 and 144,642.52 is: 216,985.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,979.96 : 591,028.24 = 144,642.52 : x
  2. Step 2: Convert to fraction form
    393,979.96/591,028.24 = 144,642.52/x
  3. Step 3: Cross multiply
    393,979.96x = 591,028.24 × 144,642.52
  4. Step 4: Simplify right side
    393,979.96x = 85,487,814,024.76
  5. Step 5: Solve for x
    x = 85,487,814,024.76/393,979.96
  6. Step 6: Final answer
    x = 216,985.18

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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.