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Finding the Fourth Proportional to 184,703, 254,890.20 and 105,215

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Solution

The fourth proportional to 184,703, 254,890.20 and 105,215 is: 145,196.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,703 : 254,890.20 = 105,215 : x
  2. Step 2: Convert to fraction form
    184,703/254,890.20 = 105,215/x
  3. Step 3: Cross multiply
    184,703x = 254,890.20 × 105,215
  4. Step 4: Simplify right side
    184,703x = 26,818,272,393
  5. Step 5: Solve for x
    x = 26,818,272,393/184,703
  6. Step 6: Final answer
    x = 145,196.73

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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.