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Finding the Fourth Proportional to 373,383.17, 515,118.23 and 216,115.64

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Solution

The fourth proportional to 373,383.17, 515,118.23 and 216,115.64 is: 298,152.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,383.17 : 515,118.23 = 216,115.64 : x
  2. Step 2: Convert to fraction form
    373,383.17/515,118.23 = 216,115.64/x
  3. Step 3: Cross multiply
    373,383.17x = 515,118.23 × 216,115.64
  4. Step 4: Simplify right side
    373,383.17x = 111,325,109,151.27
  5. Step 5: Solve for x
    x = 111,325,109,151.27/373,383.17
  6. Step 6: Final answer
    x = 298,152.46

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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.