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Finding the Fourth Proportional to 268,764.78, 370,910.70 and 154,062.54

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Solution

The fourth proportional to 268,764.78, 370,910.70 and 154,062.54 is: 212,615.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,764.78 : 370,910.70 = 154,062.54 : x
  2. Step 2: Convert to fraction form
    268,764.78/370,910.70 = 154,062.54/x
  3. Step 3: Cross multiply
    268,764.78x = 370,910.70 × 154,062.54
  4. Step 4: Simplify right side
    268,764.78x = 57,143,444,555.18
  5. Step 5: Solve for x
    x = 57,143,444,555.18/268,764.78
  6. Step 6: Final answer
    x = 212,615.08

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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.