Home / 257,328.68-355,248-199,839.02

Finding the Fourth Proportional to 257,328.68, 355,248 and 199,839.02

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Solution

The fourth proportional to 257,328.68, 355,248 and 199,839.02 is: 275,882.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,328.68 : 355,248 = 199,839.02 : x
  2. Step 2: Convert to fraction form
    257,328.68/355,248 = 199,839.02/x
  3. Step 3: Cross multiply
    257,328.68x = 355,248 × 199,839.02
  4. Step 4: Simplify right side
    257,328.68x = 70,992,410,400.72
  5. Step 5: Solve for x
    x = 70,992,410,400.72/257,328.68
  6. Step 6: Final answer
    x = 275,882.24

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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.