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Finding the Fourth Proportional to 299,388.30, 449,082.45 and 260,022.30

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Solution

The fourth proportional to 299,388.30, 449,082.45 and 260,022.30 is: 390,033.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,388.30 : 449,082.45 = 260,022.30 : x
  2. Step 2: Convert to fraction form
    299,388.30/449,082.45 = 260,022.30/x
  3. Step 3: Cross multiply
    299,388.30x = 449,082.45 × 260,022.30
  4. Step 4: Simplify right side
    299,388.30x = 116,771,451,538.64
  5. Step 5: Solve for x
    x = 116,771,451,538.64/299,388.30
  6. Step 6: Final answer
    x = 390,033.45

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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.