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Finding the Fourth Proportional to 248,713.20, 372,810.60 and 136,220.40

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Solution

The fourth proportional to 248,713.20, 372,810.60 and 136,220.40 is: 204,188.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,713.20 : 372,810.60 = 136,220.40 : x
  2. Step 2: Convert to fraction form
    248,713.20/372,810.60 = 136,220.40/x
  3. Step 3: Cross multiply
    248,713.20x = 372,810.60 × 136,220.40
  4. Step 4: Simplify right side
    248,713.20x = 50,784,409,056.24
  5. Step 5: Solve for x
    x = 50,784,409,056.24/248,713.20
  6. Step 6: Final answer
    x = 204,188.64

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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.