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Finding the Fourth Proportional to 355,045.05, 489,940.47 and 193,867.32

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Solution

The fourth proportional to 355,045.05, 489,940.47 and 193,867.32 is: 267,525.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,045.05 : 489,940.47 = 193,867.32 : x
  2. Step 2: Convert to fraction form
    355,045.05/489,940.47 = 193,867.32/x
  3. Step 3: Cross multiply
    355,045.05x = 489,940.47 × 193,867.32
  4. Step 4: Simplify right side
    355,045.05x = 94,983,445,878.44
  5. Step 5: Solve for x
    x = 94,983,445,878.44/355,045.05
  6. Step 6: Final answer
    x = 267,525.05

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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.