Home / 399,426.08-551,211.72-227,335.60

Finding the Fourth Proportional to 399,426.08, 551,211.72 and 227,335.60

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Solution

The fourth proportional to 399,426.08, 551,211.72 and 227,335.60 is: 313,725.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,426.08 : 551,211.72 = 227,335.60 : x
  2. Step 2: Convert to fraction form
    399,426.08/551,211.72 = 227,335.60/x
  3. Step 3: Cross multiply
    399,426.08x = 551,211.72 × 227,335.60
  4. Step 4: Simplify right side
    399,426.08x = 125,310,047,093.23
  5. Step 5: Solve for x
    x = 125,310,047,093.23/399,426.08
  6. Step 6: Final answer
    x = 313,725.25

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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.