Home / 399,832.16-551,767.92-218,545.28

Finding the Fourth Proportional to 399,832.16, 551,767.92 and 218,545.28

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Solution

The fourth proportional to 399,832.16, 551,767.92 and 218,545.28 is: 301,592.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,832.16 : 551,767.92 = 218,545.28 : x
  2. Step 2: Convert to fraction form
    399,832.16/551,767.92 = 218,545.28/x
  3. Step 3: Cross multiply
    399,832.16x = 551,767.92 × 218,545.28
  4. Step 4: Simplify right side
    399,832.16x = 120,586,274,571.42
  5. Step 5: Solve for x
    x = 120,586,274,571.42/399,832.16
  6. Step 6: Final answer
    x = 301,592.23

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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.