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Finding the Fourth Proportional to 376,245.95, 519,071.60 and 215,014.50

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Solution

The fourth proportional to 376,245.95, 519,071.60 and 215,014.50 is: 296,635.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,245.95 : 519,071.60 = 215,014.50 : x
  2. Step 2: Convert to fraction form
    376,245.95/519,071.60 = 215,014.50/x
  3. Step 3: Cross multiply
    376,245.95x = 519,071.60 × 215,014.50
  4. Step 4: Simplify right side
    376,245.95x = 111,607,920,538.20
  5. Step 5: Solve for x
    x = 111,607,920,538.20/376,245.95
  6. Step 6: Final answer
    x = 296,635.54

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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.