Home / 399,724.20-551,626.20-238,547.97

Finding the Fourth Proportional to 399,724.20, 551,626.20 and 238,547.97

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Solution

The fourth proportional to 399,724.20, 551,626.20 and 238,547.97 is: 329,200.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,724.20 : 551,626.20 = 238,547.97 : x
  2. Step 2: Convert to fraction form
    399,724.20/551,626.20 = 238,547.97/x
  3. Step 3: Cross multiply
    399,724.20x = 551,626.20 × 238,547.97
  4. Step 4: Simplify right side
    399,724.20x = 131,589,310,208.81
  5. Step 5: Solve for x
    x = 131,589,310,208.81/399,724.20
  6. Step 6: Final answer
    x = 329,200.26

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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.