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Finding the Fourth Proportional to 351,290.36, 526,137.45 and 274,912.91

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Solution

The fourth proportional to 351,290.36, 526,137.45 and 274,912.91 is: 411,744.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,290.36 : 526,137.45 = 274,912.91 : x
  2. Step 2: Convert to fraction form
    351,290.36/526,137.45 = 274,912.91/x
  3. Step 3: Cross multiply
    351,290.36x = 526,137.45 × 274,912.91
  4. Step 4: Simplify right side
    351,290.36x = 144,641,976,497.39
  5. Step 5: Solve for x
    x = 144,641,976,497.39/351,290.36
  6. Step 6: Final answer
    x = 411,744.79

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1.5x scale

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.