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Finding the Fourth Proportional to 373,378.48, 515,216.48 and 228,257.28

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Solution

The fourth proportional to 373,378.48, 515,216.48 and 228,257.28 is: 314,967.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,378.48 : 515,216.48 = 228,257.28 : x
  2. Step 2: Convert to fraction form
    373,378.48/515,216.48 = 228,257.28/x
  3. Step 3: Cross multiply
    373,378.48x = 515,216.48 × 228,257.28
  4. Step 4: Simplify right side
    373,378.48x = 117,601,912,335.97
  5. Step 5: Solve for x
    x = 117,601,912,335.97/373,378.48
  6. Step 6: Final answer
    x = 314,967.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.