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Finding the Fourth Proportional to 220,911.92, 304,840.40 and 124,110.50

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Solution

The fourth proportional to 220,911.92, 304,840.40 and 124,110.50 is: 171,262.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,911.92 : 304,840.40 = 124,110.50 : x
  2. Step 2: Convert to fraction form
    220,911.92/304,840.40 = 124,110.50/x
  3. Step 3: Cross multiply
    220,911.92x = 304,840.40 × 124,110.50
  4. Step 4: Simplify right side
    220,911.92x = 37,833,894,464.20
  5. Step 5: Solve for x
    x = 37,833,894,464.20/220,911.92
  6. Step 6: Final answer
    x = 171,262.35

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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.