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Finding the Fourth Proportional to 354,675.72, 489,452.52 and 227,351.58

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Solution

The fourth proportional to 354,675.72, 489,452.52 and 227,351.58 is: 313,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,675.72 : 489,452.52 = 227,351.58 : x
  2. Step 2: Convert to fraction form
    354,675.72/489,452.52 = 227,351.58/x
  3. Step 3: Cross multiply
    354,675.72x = 489,452.52 × 227,351.58
  4. Step 4: Simplify right side
    354,675.72x = 111,277,803,756.98
  5. Step 5: Solve for x
    x = 111,277,803,756.98/354,675.72
  6. Step 6: Final answer
    x = 313,745.20

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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.