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Finding the Fourth Proportional to 325,571.81, 488,437.63 and 262,959.35

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Solution

The fourth proportional to 325,571.81, 488,437.63 and 262,959.35 is: 394,503.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,571.81 : 488,437.63 = 262,959.35 : x
  2. Step 2: Convert to fraction form
    325,571.81/488,437.63 = 262,959.35/x
  3. Step 3: Cross multiply
    325,571.81x = 488,437.63 × 262,959.35
  4. Step 4: Simplify right side
    325,571.81x = 128,439,238,600.75
  5. Step 5: Solve for x
    x = 128,439,238,600.75/325,571.81
  6. Step 6: Final answer
    x = 394,503.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.