Home / 309,725.01-427,504.10-202,292.73

Finding the Fourth Proportional to 309,725.01, 427,504.10 and 202,292.73

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Solution

The fourth proportional to 309,725.01, 427,504.10 and 202,292.73 is: 279,218.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,725.01 : 427,504.10 = 202,292.73 : x
  2. Step 2: Convert to fraction form
    309,725.01/427,504.10 = 202,292.73/x
  3. Step 3: Cross multiply
    309,725.01x = 427,504.10 × 202,292.73
  4. Step 4: Simplify right side
    309,725.01x = 86,480,970,463.73
  5. Step 5: Solve for x
    x = 86,480,970,463.73/309,725.01
  6. Step 6: Final answer
    x = 279,218.56

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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.