Home / 276,768.78-381,945.15-163,602.06

Finding the Fourth Proportional to 276,768.78, 381,945.15 and 163,602.06

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Solution

The fourth proportional to 276,768.78, 381,945.15 and 163,602.06 is: 225,773.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,768.78 : 381,945.15 = 163,602.06 : x
  2. Step 2: Convert to fraction form
    276,768.78/381,945.15 = 163,602.06/x
  3. Step 3: Cross multiply
    276,768.78x = 381,945.15 × 163,602.06
  4. Step 4: Simplify right side
    276,768.78x = 62,487,013,347.01
  5. Step 5: Solve for x
    x = 62,487,013,347.01/276,768.78
  6. Step 6: Final answer
    x = 225,773.35

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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.