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Finding the Fourth Proportional to 370,353.66, 511,086.48 and 207,009.96

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Solution

The fourth proportional to 370,353.66, 511,086.48 and 207,009.96 is: 285,672.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,353.66 : 511,086.48 = 207,009.96 : x
  2. Step 2: Convert to fraction form
    370,353.66/511,086.48 = 207,009.96/x
  3. Step 3: Cross multiply
    370,353.66x = 511,086.48 × 207,009.96
  4. Step 4: Simplify right side
    370,353.66x = 105,799,991,781.34
  5. Step 5: Solve for x
    x = 105,799,991,781.34/370,353.66
  6. Step 6: Final answer
    x = 285,672.87

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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.