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Finding the Fourth Proportional to 133,346.70, 200,020.05 and 100,298.70

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Solution

The fourth proportional to 133,346.70, 200,020.05 and 100,298.70 is: 150,448.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,346.70 : 200,020.05 = 100,298.70 : x
  2. Step 2: Convert to fraction form
    133,346.70/200,020.05 = 100,298.70/x
  3. Step 3: Cross multiply
    133,346.70x = 200,020.05 × 100,298.70
  4. Step 4: Simplify right side
    133,346.70x = 20,061,750,988.94
  5. Step 5: Solve for x
    x = 20,061,750,988.94/133,346.70
  6. Step 6: Final answer
    x = 150,448.05

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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.