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Finding the Fourth Proportional to 279,283.26, 385,399.44 and 151,958.91

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Solution

The fourth proportional to 279,283.26, 385,399.44 and 151,958.91 is: 209,697.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,283.26 : 385,399.44 = 151,958.91 : x
  2. Step 2: Convert to fraction form
    279,283.26/385,399.44 = 151,958.91/x
  3. Step 3: Cross multiply
    279,283.26x = 385,399.44 × 151,958.91
  4. Step 4: Simplify right side
    279,283.26x = 58,564,878,817.01
  5. Step 5: Solve for x
    x = 58,564,878,817.01/279,283.26
  6. Step 6: Final answer
    x = 209,697.06

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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.