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Finding the Fourth Proportional to 373,445.18, 515,351.98 and 212,300.22

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Solution

The fourth proportional to 373,445.18, 515,351.98 and 212,300.22 is: 292,972.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,445.18 : 515,351.98 = 212,300.22 : x
  2. Step 2: Convert to fraction form
    373,445.18/515,351.98 = 212,300.22/x
  3. Step 3: Cross multiply
    373,445.18x = 515,351.98 × 212,300.22
  4. Step 4: Simplify right side
    373,445.18x = 109,409,338,731.44
  5. Step 5: Solve for x
    x = 109,409,338,731.44/373,445.18
  6. Step 6: Final answer
    x = 292,972.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.