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Finding the Fourth Proportional to 277,041.72, 415,562.66 and 66,679.66

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Solution

The fourth proportional to 277,041.72, 415,562.66 and 66,679.66 is: 100,019.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,041.72 : 415,562.66 = 66,679.66 : x
  2. Step 2: Convert to fraction form
    277,041.72/415,562.66 = 66,679.66/x
  3. Step 3: Cross multiply
    277,041.72x = 415,562.66 × 66,679.66
  4. Step 4: Simplify right side
    277,041.72x = 27,709,576,877.50
  5. Step 5: Solve for x
    x = 27,709,576,877.50/277,041.72
  6. Step 6: Final answer
    x = 100,019.51

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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.