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Finding the Fourth Proportional to 277,310.31, 415,965.48 and 90,321.81

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Solution

The fourth proportional to 277,310.31, 415,965.48 and 90,321.81 is: 135,482.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,310.31 : 415,965.48 = 90,321.81 : x
  2. Step 2: Convert to fraction form
    277,310.31/415,965.48 = 90,321.81/x
  3. Step 3: Cross multiply
    277,310.31x = 415,965.48 × 90,321.81
  4. Step 4: Simplify right side
    277,310.31x = 37,570,755,051.12
  5. Step 5: Solve for x
    x = 37,570,755,051.12/277,310.31
  6. Step 6: Final answer
    x = 135,482.72

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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.