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Finding the Fourth Proportional to 193,407.72, 288,787.95 and 173,287.32

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Solution

The fourth proportional to 193,407.72, 288,787.95 and 173,287.32 is: 258,745.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,407.72 : 288,787.95 = 173,287.32 : x
  2. Step 2: Convert to fraction form
    193,407.72/288,787.95 = 173,287.32/x
  3. Step 3: Cross multiply
    193,407.72x = 288,787.95 × 173,287.32
  4. Step 4: Simplify right side
    193,407.72x = 50,043,289,903.79
  5. Step 5: Solve for x
    x = 50,043,289,903.79/193,407.72
  6. Step 6: Final answer
    x = 258,745.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.