Home / 317,796.20-438,561.92-172,604.82

Finding the Fourth Proportional to 317,796.20, 438,561.92 and 172,604.82

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Solution

The fourth proportional to 317,796.20, 438,561.92 and 172,604.82 is: 238,196.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,796.20 : 438,561.92 = 172,604.82 : x
  2. Step 2: Convert to fraction form
    317,796.20/438,561.92 = 172,604.82/x
  3. Step 3: Cross multiply
    317,796.20x = 438,561.92 × 172,604.82
  4. Step 4: Simplify right side
    317,796.20x = 75,697,901,260.45
  5. Step 5: Solve for x
    x = 75,697,901,260.45/317,796.20
  6. Step 6: Final answer
    x = 238,196.37

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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.