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Finding the Fourth Proportional to 305,858, 458,804.28 and 108,866

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Solution

The fourth proportional to 305,858, 458,804.28 and 108,866 is: 163,305.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,858 : 458,804.28 = 108,866 : x
  2. Step 2: Convert to fraction form
    305,858/458,804.28 = 108,866/x
  3. Step 3: Cross multiply
    305,858x = 458,804.28 × 108,866
  4. Step 4: Simplify right side
    305,858x = 49,948,186,746.48
  5. Step 5: Solve for x
    x = 49,948,186,746.48/305,858
  6. Step 6: Final answer
    x = 163,305.15

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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.