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Finding the Fourth Proportional to 373,278.21, 515,101.73 and 212,110.89

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Solution

The fourth proportional to 373,278.21, 515,101.73 and 212,110.89 is: 292,700.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,278.21 : 515,101.73 = 212,110.89 : x
  2. Step 2: Convert to fraction form
    373,278.21/515,101.73 = 212,110.89/x
  3. Step 3: Cross multiply
    373,278.21x = 515,101.73 × 212,110.89
  4. Step 4: Simplify right side
    373,278.21x = 109,258,684,591.78
  5. Step 5: Solve for x
    x = 109,258,684,591.78/373,278.21
  6. Step 6: Final answer
    x = 292,700.41

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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.