Home / 371,728.13-557,872.61-172,188.51

Finding the Fourth Proportional to 371,728.13, 557,872.61 and 172,188.51

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Solution

The fourth proportional to 371,728.13, 557,872.61 and 172,188.51 is: 258,412.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,728.13 : 557,872.61 = 172,188.51 : x
  2. Step 2: Convert to fraction form
    371,728.13/557,872.61 = 172,188.51/x
  3. Step 3: Cross multiply
    371,728.13x = 557,872.61 × 172,188.51
  4. Step 4: Simplify right side
    371,728.13x = 96,059,252,624.77
  5. Step 5: Solve for x
    x = 96,059,252,624.77/371,728.13
  6. Step 6: Final answer
    x = 258,412.66

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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.