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Finding the Fourth Proportional to 220,897.35, 304,750.62 and 127,745.87

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Solution

The fourth proportional to 220,897.35, 304,750.62 and 127,745.87 is: 176,238.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,897.35 : 304,750.62 = 127,745.87 : x
  2. Step 2: Convert to fraction form
    220,897.35/304,750.62 = 127,745.87/x
  3. Step 3: Cross multiply
    220,897.35x = 304,750.62 × 127,745.87
  4. Step 4: Simplify right side
    220,897.35x = 38,930,631,561.19
  5. Step 5: Solve for x
    x = 38,930,631,561.19/220,897.35
  6. Step 6: Final answer
    x = 176,238.56

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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.