Home / 399,284.03-551,260.67-254,171.72

Finding the Fourth Proportional to 399,284.03, 551,260.67 and 254,171.72

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Solution

The fourth proportional to 399,284.03, 551,260.67 and 254,171.72 is: 350,915.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,284.03 : 551,260.67 = 254,171.72 : x
  2. Step 2: Convert to fraction form
    399,284.03/551,260.67 = 254,171.72/x
  3. Step 3: Cross multiply
    399,284.03x = 551,260.67 × 254,171.72
  4. Step 4: Simplify right side
    399,284.03x = 140,114,868,635.09
  5. Step 5: Solve for x
    x = 140,114,868,635.09/399,284.03
  6. Step 6: Final answer
    x = 350,915.29

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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.