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Finding the Fourth Proportional to 279,299.44, 385,431.44 and 151,975.52

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Solution

The fourth proportional to 279,299.44, 385,431.44 and 151,975.52 is: 209,725.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,299.44 : 385,431.44 = 151,975.52 : x
  2. Step 2: Convert to fraction form
    279,299.44/385,431.44 = 151,975.52/x
  3. Step 3: Cross multiply
    279,299.44x = 385,431.44 × 151,975.52
  4. Step 4: Simplify right side
    279,299.44x = 58,576,143,518.35
  5. Step 5: Solve for x
    x = 58,576,143,518.35/279,299.44
  6. Step 6: Final answer
    x = 209,725.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.