Home / 326,727.10-490,090.65-271,431.10

Finding the Fourth Proportional to 326,727.10, 490,090.65 and 271,431.10

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Solution

The fourth proportional to 326,727.10, 490,090.65 and 271,431.10 is: 407,146.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,727.10 : 490,090.65 = 271,431.10 : x
  2. Step 2: Convert to fraction form
    326,727.10/490,090.65 = 271,431.10/x
  3. Step 3: Cross multiply
    326,727.10x = 490,090.65 × 271,431.10
  4. Step 4: Simplify right side
    326,727.10x = 133,025,844,229.22
  5. Step 5: Solve for x
    x = 133,025,844,229.22/326,727.10
  6. Step 6: Final answer
    x = 407,146.65

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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.