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Finding the Fourth Proportional to 339,279.44, 508,880.28 and 89,980.88

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Solution

The fourth proportional to 339,279.44, 508,880.28 and 89,980.88 is: 134,961.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,279.44 : 508,880.28 = 89,980.88 : x
  2. Step 2: Convert to fraction form
    339,279.44/508,880.28 = 89,980.88/x
  3. Step 3: Cross multiply
    339,279.44x = 508,880.28 × 89,980.88
  4. Step 4: Simplify right side
    339,279.44x = 45,789,495,409.05
  5. Step 5: Solve for x
    x = 45,789,495,409.05/339,279.44
  6. Step 6: Final answer
    x = 134,961.01

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Similar ratio
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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.