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Finding the Fourth Proportional to 248,142.30, 372,213.45 and 98,418.30

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Solution

The fourth proportional to 248,142.30, 372,213.45 and 98,418.30 is: 147,627.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,142.30 : 372,213.45 = 98,418.30 : x
  2. Step 2: Convert to fraction form
    248,142.30/372,213.45 = 98,418.30/x
  3. Step 3: Cross multiply
    248,142.30x = 372,213.45 × 98,418.30
  4. Step 4: Simplify right side
    248,142.30x = 36,632,614,986.14
  5. Step 5: Solve for x
    x = 36,632,614,986.14/248,142.30
  6. Step 6: Final answer
    x = 147,627.45

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1.5x scale

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.