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Finding the Fourth Proportional to 368,816.07, 508,913.22 and 205,471.47

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Solution

The fourth proportional to 368,816.07, 508,913.22 and 205,471.47 is: 283,521.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,816.07 : 508,913.22 = 205,471.47 : x
  2. Step 2: Convert to fraction form
    368,816.07/508,913.22 = 205,471.47/x
  3. Step 3: Cross multiply
    368,816.07x = 508,913.22 × 205,471.47
  4. Step 4: Simplify right side
    368,816.07x = 104,567,147,415.83
  5. Step 5: Solve for x
    x = 104,567,147,415.83/368,816.07
  6. Step 6: Final answer
    x = 283,521.13

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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.