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Finding the Fourth Proportional to 368,686.07, 508,825.16 and 225,541.45

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Solution

The fourth proportional to 368,686.07, 508,825.16 and 225,541.45 is: 311,270.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,686.07 : 508,825.16 = 225,541.45 : x
  2. Step 2: Convert to fraction form
    368,686.07/508,825.16 = 225,541.45/x
  3. Step 3: Cross multiply
    368,686.07x = 508,825.16 × 225,541.45
  4. Step 4: Simplify right side
    368,686.07x = 114,761,164,382.88
  5. Step 5: Solve for x
    x = 114,761,164,382.88/368,686.07
  6. Step 6: Final answer
    x = 311,270.68

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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.