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Finding the Fourth Proportional to 277,622.37, 415,801.28 and 217,274.40

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Solution

The fourth proportional to 277,622.37, 415,801.28 and 217,274.40 is: 325,416.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,622.37 : 415,801.28 = 217,274.40 : x
  2. Step 2: Convert to fraction form
    277,622.37/415,801.28 = 217,274.40/x
  3. Step 3: Cross multiply
    277,622.37x = 415,801.28 × 217,274.40
  4. Step 4: Simplify right side
    277,622.37x = 90,342,972,544.86
  5. Step 5: Solve for x
    x = 90,342,972,544.86/277,622.37
  6. Step 6: Final answer
    x = 325,416.76

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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.