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Finding the Fourth Proportional to 220,557.01, 330,804.23 and 70,777.91

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Solution

The fourth proportional to 220,557.01, 330,804.23 and 70,777.91 is: 106,156.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,557.01 : 330,804.23 = 70,777.91 : x
  2. Step 2: Convert to fraction form
    220,557.01/330,804.23 = 70,777.91/x
  3. Step 3: Cross multiply
    220,557.01x = 330,804.23 × 70,777.91
  4. Step 4: Simplify right side
    220,557.01x = 23,413,631,664.67
  5. Step 5: Solve for x
    x = 23,413,631,664.67/220,557.01
  6. Step 6: Final answer
    x = 106,156.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.