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Finding the Fourth Proportional to 384,141.15, 576,207.09 and 99,806.54

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Solution

The fourth proportional to 384,141.15, 576,207.09 and 99,806.54 is: 149,708.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,141.15 : 576,207.09 = 99,806.54 : x
  2. Step 2: Convert to fraction form
    384,141.15/576,207.09 = 99,806.54/x
  3. Step 3: Cross multiply
    384,141.15x = 576,207.09 × 99,806.54
  4. Step 4: Simplify right side
    384,141.15x = 57,509,233,095.33
  5. Step 5: Solve for x
    x = 57,509,233,095.33/384,141.15
  6. Step 6: Final answer
    x = 149,708.60

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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.