Home / 355,949.15-491,264.96-202,987.62

Finding the Fourth Proportional to 355,949.15, 491,264.96 and 202,987.62

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Solution

The fourth proportional to 355,949.15, 491,264.96 and 202,987.62 is: 280,154.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,949.15 : 491,264.96 = 202,987.62 : x
  2. Step 2: Convert to fraction form
    355,949.15/491,264.96 = 202,987.62/x
  3. Step 3: Cross multiply
    355,949.15x = 491,264.96 × 202,987.62
  4. Step 4: Simplify right side
    355,949.15x = 99,720,704,004.86
  5. Step 5: Solve for x
    x = 99,720,704,004.86/355,949.15
  6. Step 6: Final answer
    x = 280,154.36

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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.