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Finding the Fourth Proportional to 248,420.40, 372,193.20 and 203,805.60

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Solution

The fourth proportional to 248,420.40, 372,193.20 and 203,805.60 is: 305,349.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,420.40 : 372,193.20 = 203,805.60 : x
  2. Step 2: Convert to fraction form
    248,420.40/372,193.20 = 203,805.60/x
  3. Step 3: Cross multiply
    248,420.40x = 372,193.20 × 203,805.60
  4. Step 4: Simplify right side
    248,420.40x = 75,855,058,441.92
  5. Step 5: Solve for x
    x = 75,855,058,441.92/248,420.40
  6. Step 6: Final answer
    x = 305,349.55

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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.