Home / 490,195.21-676,454.65-272,403.15

Finding the Fourth Proportional to 490,195.21, 676,454.65 and 272,403.15

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Solution

The fourth proportional to 490,195.21, 676,454.65 and 272,403.15 is: 375,908.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,195.21 : 676,454.65 = 272,403.15 : x
  2. Step 2: Convert to fraction form
    490,195.21/676,454.65 = 272,403.15/x
  3. Step 3: Cross multiply
    490,195.21x = 676,454.65 × 272,403.15
  4. Step 4: Simplify right side
    490,195.21x = 184,268,377,832.65
  5. Step 5: Solve for x
    x = 184,268,377,832.65/490,195.21
  6. Step 6: Final answer
    x = 375,908.16

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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.