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Finding the Fourth Proportional to 376,245.45, 519,070.91 and 215,014.00

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Solution

The fourth proportional to 376,245.45, 519,070.91 and 215,014.00 is: 296,634.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,245.45 : 519,070.91 = 215,014.00 : x
  2. Step 2: Convert to fraction form
    376,245.45/519,070.91 = 215,014.00/x
  3. Step 3: Cross multiply
    376,245.45x = 519,070.91 × 215,014.00
  4. Step 4: Simplify right side
    376,245.45x = 111,607,512,452.70
  5. Step 5: Solve for x
    x = 111,607,512,452.70/376,245.45
  6. Step 6: Final answer
    x = 296,634.85

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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.