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Finding the Fourth Proportional to 277,133.91, 415,708.61 and 90,145.41

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Solution

The fourth proportional to 277,133.91, 415,708.61 and 90,145.41 is: 135,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,133.91 : 415,708.61 = 90,145.41 : x
  2. Step 2: Convert to fraction form
    277,133.91/415,708.61 = 90,145.41/x
  3. Step 3: Cross multiply
    277,133.91x = 415,708.61 × 90,145.41
  4. Step 4: Simplify right side
    277,133.91x = 37,474,221,079.35
  5. Step 5: Solve for x
    x = 37,474,221,079.35/277,133.91
  6. Step 6: Final answer
    x = 135,220.63

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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.