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Finding the Fourth Proportional to 299,427.90, 449,314.65 and 112,458.30

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Solution

The fourth proportional to 299,427.90, 449,314.65 and 112,458.30 is: 168,752.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,427.90 : 449,314.65 = 112,458.30 : x
  2. Step 2: Convert to fraction form
    299,427.90/449,314.65 = 112,458.30/x
  3. Step 3: Cross multiply
    299,427.90x = 449,314.65 × 112,458.30
  4. Step 4: Simplify right side
    299,427.90x = 50,529,161,704.10
  5. Step 5: Solve for x
    x = 50,529,161,704.10/299,427.90
  6. Step 6: Final answer
    x = 168,752.35

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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.