Home / 399,297.03-551,278.61-254,184.72

Finding the Fourth Proportional to 399,297.03, 551,278.61 and 254,184.72

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Solution

The fourth proportional to 399,297.03, 551,278.61 and 254,184.72 is: 350,933.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,297.03 : 551,278.61 = 254,184.72 : x
  2. Step 2: Convert to fraction form
    399,297.03/551,278.61 = 254,184.72/x
  3. Step 3: Cross multiply
    399,297.03x = 551,278.61 × 254,184.72
  4. Step 4: Simplify right side
    399,297.03x = 140,126,599,124.84
  5. Step 5: Solve for x
    x = 140,126,599,124.84/399,297.03
  6. Step 6: Final answer
    x = 350,933.24

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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.