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Finding the Fourth Proportional to 277,275.30, 415,912.85 and 108,874.86

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Solution

The fourth proportional to 277,275.30, 415,912.85 and 108,874.86 is: 163,312.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,275.30 : 415,912.85 = 108,874.86 : x
  2. Step 2: Convert to fraction form
    277,275.30/415,912.85 = 108,874.86/x
  3. Step 3: Cross multiply
    277,275.30x = 415,912.85 × 108,874.86
  4. Step 4: Simplify right side
    277,275.30x = 45,282,452,771.58
  5. Step 5: Solve for x
    x = 45,282,452,771.58/277,275.30
  6. Step 6: Final answer
    x = 163,312.25

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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.