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Finding the Fourth Proportional to 301,229.76, 415,650.78 and 173,880.75

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Solution

The fourth proportional to 301,229.76, 415,650.78 and 173,880.75 is: 239,928.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,229.76 : 415,650.78 = 173,880.75 : x
  2. Step 2: Convert to fraction form
    301,229.76/415,650.78 = 173,880.75/x
  3. Step 3: Cross multiply
    301,229.76x = 415,650.78 × 173,880.75
  4. Step 4: Simplify right side
    301,229.76x = 72,273,669,364.49
  5. Step 5: Solve for x
    x = 72,273,669,364.49/301,229.76
  6. Step 6: Final answer
    x = 239,928.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.