Home / 317,620.44-438,150.87-257,259.24

Finding the Fourth Proportional to 317,620.44, 438,150.87 and 257,259.24

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Solution

The fourth proportional to 317,620.44, 438,150.87 and 257,259.24 is: 354,883.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,620.44 : 438,150.87 = 257,259.24 : x
  2. Step 2: Convert to fraction form
    317,620.44/438,150.87 = 257,259.24/x
  3. Step 3: Cross multiply
    317,620.44x = 438,150.87 × 257,259.24
  4. Step 4: Simplify right side
    317,620.44x = 112,718,359,821.54
  5. Step 5: Solve for x
    x = 112,718,359,821.54/317,620.44
  6. Step 6: Final answer
    x = 354,883.83

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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.