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Finding the Fourth Proportional to 251,090.64, 376,635.12 and 157,662

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Solution

The fourth proportional to 251,090.64, 376,635.12 and 157,662 is: 236,492.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,090.64 : 376,635.12 = 157,662 : x
  2. Step 2: Convert to fraction form
    251,090.64/376,635.12 = 157,662/x
  3. Step 3: Cross multiply
    251,090.64x = 376,635.12 × 157,662
  4. Step 4: Simplify right side
    251,090.64x = 59,381,046,289.44
  5. Step 5: Solve for x
    x = 59,381,046,289.44/251,090.64
  6. Step 6: Final answer
    x = 236,492.47

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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.