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Finding the Fourth Proportional to 248,179, 372,391.50 and 98,416

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Solution

The fourth proportional to 248,179, 372,391.50 and 98,416 is: 147,672.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,179 : 372,391.50 = 98,416 : x
  2. Step 2: Convert to fraction form
    248,179/372,391.50 = 98,416/x
  3. Step 3: Cross multiply
    248,179x = 372,391.50 × 98,416
  4. Step 4: Simplify right side
    248,179x = 36,649,281,864
  5. Step 5: Solve for x
    x = 36,649,281,864/248,179
  6. Step 6: Final answer
    x = 147,672.78

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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.