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Finding the Fourth Proportional to 319,456.94, 478,481.39 and 264,055.35

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Solution

The fourth proportional to 319,456.94, 478,481.39 and 264,055.35 is: 395,501.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,456.94 : 478,481.39 = 264,055.35 : x
  2. Step 2: Convert to fraction form
    319,456.94/478,481.39 = 264,055.35/x
  3. Step 3: Cross multiply
    319,456.94x = 478,481.39 × 264,055.35
  4. Step 4: Simplify right side
    319,456.94x = 126,345,569,584.66
  5. Step 5: Solve for x
    x = 126,345,569,584.66/319,456.94
  6. Step 6: Final answer
    x = 395,501.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.