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Finding the Fourth Proportional to 368,276.49, 508,216.54 and 207,131.49

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Solution

The fourth proportional to 368,276.49, 508,216.54 and 207,131.49 is: 285,838.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,276.49 : 508,216.54 = 207,131.49 : x
  2. Step 2: Convert to fraction form
    368,276.49/508,216.54 = 207,131.49/x
  3. Step 3: Cross multiply
    368,276.49x = 508,216.54 × 207,131.49
  4. Step 4: Simplify right side
    368,276.49x = 105,267,649,172.85
  5. Step 5: Solve for x
    x = 105,267,649,172.85/368,276.49
  6. Step 6: Final answer
    x = 285,838.63

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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.