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Finding the Fourth Proportional to 370,691.02, 511,548.06 and 209,540.44

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Solution

The fourth proportional to 370,691.02, 511,548.06 and 209,540.44 is: 289,162.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,691.02 : 511,548.06 = 209,540.44 : x
  2. Step 2: Convert to fraction form
    370,691.02/511,548.06 = 209,540.44/x
  3. Step 3: Cross multiply
    370,691.02x = 511,548.06 × 209,540.44
  4. Step 4: Simplify right side
    370,691.02x = 107,190,005,573.55
  5. Step 5: Solve for x
    x = 107,190,005,573.55/370,691.02
  6. Step 6: Final answer
    x = 289,162.67

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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.