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Finding the Fourth Proportional to 373,492.76, 515,399.10 and 212,325.44

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Solution

The fourth proportional to 373,492.76, 515,399.10 and 212,325.44 is: 292,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,492.76 : 515,399.10 = 212,325.44 : x
  2. Step 2: Convert to fraction form
    373,492.76/515,399.10 = 212,325.44/x
  3. Step 3: Cross multiply
    373,492.76x = 515,399.10 × 212,325.44
  4. Step 4: Simplify right side
    373,492.76x = 109,432,340,683.10
  5. Step 5: Solve for x
    x = 109,432,340,683.10/373,492.76
  6. Step 6: Final answer
    x = 292,997.22

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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.