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Finding the Fourth Proportional to 376,520.08, 519,600.56 and 215,365.20

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Solution

The fourth proportional to 376,520.08, 519,600.56 and 215,365.20 is: 297,205.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,520.08 : 519,600.56 = 215,365.20 : x
  2. Step 2: Convert to fraction form
    376,520.08/519,600.56 = 215,365.20/x
  3. Step 3: Cross multiply
    376,520.08x = 519,600.56 × 215,365.20
  4. Step 4: Simplify right side
    376,520.08x = 111,903,878,524.51
  5. Step 5: Solve for x
    x = 111,903,878,524.51/376,520.08
  6. Step 6: Final answer
    x = 297,205.61

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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.