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Finding the Fourth Proportional to 303,323.70, 454,985.55 and 203,790.90

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Solution

The fourth proportional to 303,323.70, 454,985.55 and 203,790.90 is: 305,686.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,323.70 : 454,985.55 = 203,790.90 : x
  2. Step 2: Convert to fraction form
    303,323.70/454,985.55 = 203,790.90/x
  3. Step 3: Cross multiply
    303,323.70x = 454,985.55 × 203,790.90
  4. Step 4: Simplify right side
    303,323.70x = 92,721,914,721.50
  5. Step 5: Solve for x
    x = 92,721,914,721.50/303,323.70
  6. Step 6: Final answer
    x = 305,686.35

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Similar ratio
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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.