Home / 286,715.97-395,728.24-181,872.10

Finding the Fourth Proportional to 286,715.97, 395,728.24 and 181,872.10

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Solution

The fourth proportional to 286,715.97, 395,728.24 and 181,872.10 is: 251,021.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,715.97 : 395,728.24 = 181,872.10 : x
  2. Step 2: Convert to fraction form
    286,715.97/395,728.24 = 181,872.10/x
  3. Step 3: Cross multiply
    286,715.97x = 395,728.24 × 181,872.10
  4. Step 4: Simplify right side
    286,715.97x = 71,971,924,139.42
  5. Step 5: Solve for x
    x = 71,971,924,139.42/286,715.97
  6. Step 6: Final answer
    x = 251,021.68

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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.