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Finding the Fourth Proportional to 373,307.88, 515,245.32 and 220,289.16

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Solution

The fourth proportional to 373,307.88, 515,245.32 and 220,289.16 is: 304,046.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,307.88 : 515,245.32 = 220,289.16 : x
  2. Step 2: Convert to fraction form
    373,307.88/515,245.32 = 220,289.16/x
  3. Step 3: Cross multiply
    373,307.88x = 515,245.32 × 220,289.16
  4. Step 4: Simplify right side
    373,307.88x = 113,502,958,736.73
  5. Step 5: Solve for x
    x = 113,502,958,736.73/373,307.88
  6. Step 6: Final answer
    x = 304,046.51

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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.