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Finding the Fourth Proportional to 303,205.80, 454,808.70 and 297,300.90

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Solution

The fourth proportional to 303,205.80, 454,808.70 and 297,300.90 is: 445,951.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,205.80 : 454,808.70 = 297,300.90 : x
  2. Step 2: Convert to fraction form
    303,205.80/454,808.70 = 297,300.90/x
  3. Step 3: Cross multiply
    303,205.80x = 454,808.70 × 297,300.90
  4. Step 4: Simplify right side
    303,205.80x = 135,215,035,837.83
  5. Step 5: Solve for x
    x = 135,215,035,837.83/303,205.80
  6. Step 6: Final answer
    x = 445,951.35

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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.