Home / 369,083.10-509,334.67-199,317.21

Finding the Fourth Proportional to 369,083.10, 509,334.67 and 199,317.21

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Solution

The fourth proportional to 369,083.10, 509,334.67 and 199,317.21 is: 275,057.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,083.10 : 509,334.67 = 199,317.21 : x
  2. Step 2: Convert to fraction form
    369,083.10/509,334.67 = 199,317.21/x
  3. Step 3: Cross multiply
    369,083.10x = 509,334.67 × 199,317.21
  4. Step 4: Simplify right side
    369,083.10x = 101,519,165,380.67
  5. Step 5: Solve for x
    x = 101,519,165,380.67/369,083.10
  6. Step 6: Final answer
    x = 275,057.75

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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.