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Finding the Fourth Proportional to 300,799.80, 451,199.70 and 134,587.80

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Solution

The fourth proportional to 300,799.80, 451,199.70 and 134,587.80 is: 201,881.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,799.80 : 451,199.70 = 134,587.80 : x
  2. Step 2: Convert to fraction form
    300,799.80/451,199.70 = 134,587.80/x
  3. Step 3: Cross multiply
    300,799.80x = 451,199.70 × 134,587.80
  4. Step 4: Simplify right side
    300,799.80x = 60,725,974,983.66
  5. Step 5: Solve for x
    x = 60,725,974,983.66/300,799.80
  6. Step 6: Final answer
    x = 201,881.70

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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.