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Finding the Fourth Proportional to 262,208.80, 393,507.60 and 173,432.80

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Solution

The fourth proportional to 262,208.80, 393,507.60 and 173,432.80 is: 260,277.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,208.80 : 393,507.60 = 173,432.80 : x
  2. Step 2: Convert to fraction form
    262,208.80/393,507.60 = 173,432.80/x
  3. Step 3: Cross multiply
    262,208.80x = 393,507.60 × 173,432.80
  4. Step 4: Simplify right side
    262,208.80x = 68,247,124,889.28
  5. Step 5: Solve for x
    x = 68,247,124,889.28/262,208.80
  6. Step 6: Final answer
    x = 260,277.78

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