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Finding the Fourth Proportional to 277,305.80, 415,958.72 and 90,317.30

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Solution

The fourth proportional to 277,305.80, 415,958.72 and 90,317.30 is: 135,475.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,305.80 : 415,958.72 = 90,317.30 : x
  2. Step 2: Convert to fraction form
    277,305.80/415,958.72 = 90,317.30/x
  3. Step 3: Cross multiply
    277,305.80x = 415,958.72 × 90,317.30
  4. Step 4: Simplify right side
    277,305.80x = 37,568,267,530.32
  5. Step 5: Solve for x
    x = 37,568,267,530.32/277,305.80
  6. Step 6: Final answer
    x = 135,475.95

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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.