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Finding the Fourth Proportional to 373,617.88, 515,540.62 and 212,455.08

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Solution

The fourth proportional to 373,617.88, 515,540.62 and 212,455.08 is: 293,158.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,617.88 : 515,540.62 = 212,455.08 : x
  2. Step 2: Convert to fraction form
    373,617.88/515,540.62 = 212,455.08/x
  3. Step 3: Cross multiply
    373,617.88x = 515,540.62 × 212,455.08
  4. Step 4: Simplify right side
    373,617.88x = 109,529,223,665.35
  5. Step 5: Solve for x
    x = 109,529,223,665.35/373,617.88
  6. Step 6: Final answer
    x = 293,158.41

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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.