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Finding the Fourth Proportional to 309,601.67, 464,402.91 and 84,965.18

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Solution

The fourth proportional to 309,601.67, 464,402.91 and 84,965.18 is: 127,447.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,601.67 : 464,402.91 = 84,965.18 : x
  2. Step 2: Convert to fraction form
    309,601.67/464,402.91 = 84,965.18/x
  3. Step 3: Cross multiply
    309,601.67x = 464,402.91 × 84,965.18
  4. Step 4: Simplify right side
    309,601.67x = 39,458,076,840.67
  5. Step 5: Solve for x
    x = 39,458,076,840.67/309,601.67
  6. Step 6: Final answer
    x = 127,447.88

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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.