Home / 399,727.45-551,630.69-238,551.22

Finding the Fourth Proportional to 399,727.45, 551,630.69 and 238,551.22

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Solution

The fourth proportional to 399,727.45, 551,630.69 and 238,551.22 is: 329,204.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,727.45 : 551,630.69 = 238,551.22 : x
  2. Step 2: Convert to fraction form
    399,727.45/551,630.69 = 238,551.22/x
  3. Step 3: Cross multiply
    399,727.45x = 551,630.69 × 238,551.22
  4. Step 4: Simplify right side
    399,727.45x = 131,592,174,088.94
  5. Step 5: Solve for x
    x = 131,592,174,088.94/399,727.45
  6. Step 6: Final answer
    x = 329,204.75

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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.