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Finding the Fourth Proportional to 492,369.88, 679,470.78 and 266,015.32

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Solution

The fourth proportional to 492,369.88, 679,470.78 and 266,015.32 is: 367,101.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,369.88 : 679,470.78 = 266,015.32 : x
  2. Step 2: Convert to fraction form
    492,369.88/679,470.78 = 266,015.32/x
  3. Step 3: Cross multiply
    492,369.88x = 679,470.78 × 266,015.32
  4. Step 4: Simplify right side
    492,369.88x = 180,749,636,972.35
  5. Step 5: Solve for x
    x = 180,749,636,972.35/492,369.88
  6. Step 6: Final answer
    x = 367,101.33

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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.