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Finding the Fourth Proportional to 300,248.38, 450,372.88 and 122,755.40

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Solution

The fourth proportional to 300,248.38, 450,372.88 and 122,755.40 is: 184,133.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,248.38 : 450,372.88 = 122,755.40 : x
  2. Step 2: Convert to fraction form
    300,248.38/450,372.88 = 122,755.40/x
  3. Step 3: Cross multiply
    300,248.38x = 450,372.88 × 122,755.40
  4. Step 4: Simplify right side
    300,248.38x = 55,285,702,624.03
  5. Step 5: Solve for x
    x = 55,285,702,624.03/300,248.38
  6. Step 6: Final answer
    x = 184,133.22

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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.