Home / 409,134.09-613,784.97-172,477.20

Finding the Fourth Proportional to 409,134.09, 613,784.97 and 172,477.20

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Solution

The fourth proportional to 409,134.09, 613,784.97 and 172,477.20 is: 258,751.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,134.09 : 613,784.97 = 172,477.20 : x
  2. Step 2: Convert to fraction form
    409,134.09/613,784.97 = 172,477.20/x
  3. Step 3: Cross multiply
    409,134.09x = 613,784.97 × 172,477.20
  4. Step 4: Simplify right side
    409,134.09x = 105,863,913,027.68
  5. Step 5: Solve for x
    x = 105,863,913,027.68/409,134.09
  6. Step 6: Final answer
    x = 258,751.14

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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.