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Finding the Fourth Proportional to 230,735.80, 346,103.70 and 221,878.45

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Solution

The fourth proportional to 230,735.80, 346,103.70 and 221,878.45 is: 332,817.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,735.80 : 346,103.70 = 221,878.45 : x
  2. Step 2: Convert to fraction form
    230,735.80/346,103.70 = 221,878.45/x
  3. Step 3: Cross multiply
    230,735.80x = 346,103.70 × 221,878.45
  4. Step 4: Simplify right side
    230,735.80x = 76,792,952,495.27
  5. Step 5: Solve for x
    x = 76,792,952,495.27/230,735.80
  6. Step 6: Final answer
    x = 332,817.68

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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.