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Finding the Fourth Proportional to 485,353, 728,173.14 and 248,861.62

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Solution

The fourth proportional to 485,353, 728,173.14 and 248,861.62 is: 373,366.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,353 : 728,173.14 = 248,861.62 : x
  2. Step 2: Convert to fraction form
    485,353/728,173.14 = 248,861.62/x
  3. Step 3: Cross multiply
    485,353x = 728,173.14 × 248,861.62
  4. Step 4: Simplify right side
    485,353x = 181,214,347,260.89
  5. Step 5: Solve for x
    x = 181,214,347,260.89/485,353
  6. Step 6: Final answer
    x = 373,366.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.