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Finding the Fourth Proportional to 492,259.50, 679,318.47 and 265,905

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Solution

The fourth proportional to 492,259.50, 679,318.47 and 265,905 is: 366,949.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,259.50 : 679,318.47 = 265,905 : x
  2. Step 2: Convert to fraction form
    492,259.50/679,318.47 = 265,905/x
  3. Step 3: Cross multiply
    492,259.50x = 679,318.47 × 265,905
  4. Step 4: Simplify right side
    492,259.50x = 180,634,177,765.35
  5. Step 5: Solve for x
    x = 180,634,177,765.35/492,259.50
  6. Step 6: Final answer
    x = 366,949.09

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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.