Home / 327,643.28-491,465.08-90,986.32

Finding the Fourth Proportional to 327,643.28, 491,465.08 and 90,986.32

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Solution

The fourth proportional to 327,643.28, 491,465.08 and 90,986.32 is: 136,479.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,643.28 : 491,465.08 = 90,986.32 : x
  2. Step 2: Convert to fraction form
    327,643.28/491,465.08 = 90,986.32/x
  3. Step 3: Cross multiply
    327,643.28x = 491,465.08 × 90,986.32
  4. Step 4: Simplify right side
    327,643.28x = 44,716,599,037.71
  5. Step 5: Solve for x
    x = 44,716,599,037.71/327,643.28
  6. Step 6: Final answer
    x = 136,479.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.