Home / 399,424.08-551,208.96-227,333.60

Finding the Fourth Proportional to 399,424.08, 551,208.96 and 227,333.60

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Solution

The fourth proportional to 399,424.08, 551,208.96 and 227,333.60 is: 313,722.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,424.08 : 551,208.96 = 227,333.60 : x
  2. Step 2: Convert to fraction form
    399,424.08/551,208.96 = 227,333.60/x
  3. Step 3: Cross multiply
    399,424.08x = 551,208.96 × 227,333.60
  4. Step 4: Simplify right side
    399,424.08x = 125,308,314,473.01
  5. Step 5: Solve for x
    x = 125,308,314,473.01/399,424.08
  6. Step 6: Final answer
    x = 313,722.48

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1.5x scale

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.