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Finding the Fourth Proportional to 357,119.45, 492,830.89 and 195,989.49

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Solution

The fourth proportional to 357,119.45, 492,830.89 and 195,989.49 is: 270,468.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,119.45 : 492,830.89 = 195,989.49 : x
  2. Step 2: Convert to fraction form
    357,119.45/492,830.89 = 195,989.49/x
  3. Step 3: Cross multiply
    357,119.45x = 492,830.89 × 195,989.49
  4. Step 4: Simplify right side
    357,119.45x = 96,589,674,787.35
  5. Step 5: Solve for x
    x = 96,589,674,787.35/357,119.45
  6. Step 6: Final answer
    x = 270,468.82

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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.