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Finding the Fourth Proportional to 248,443.20, 372,664.80 and 130,150.80

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Solution

The fourth proportional to 248,443.20, 372,664.80 and 130,150.80 is: 195,226.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,443.20 : 372,664.80 = 130,150.80 : x
  2. Step 2: Convert to fraction form
    248,443.20/372,664.80 = 130,150.80/x
  3. Step 3: Cross multiply
    248,443.20x = 372,664.80 × 130,150.80
  4. Step 4: Simplify right side
    248,443.20x = 48,502,621,851.84
  5. Step 5: Solve for x
    x = 48,502,621,851.84/248,443.20
  6. Step 6: Final answer
    x = 195,226.20

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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.