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Finding the Fourth Proportional to 385,109.44, 577,676 and 104,632.64

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Solution

The fourth proportional to 385,109.44, 577,676 and 104,632.64 is: 156,952.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,109.44 : 577,676 = 104,632.64 : x
  2. Step 2: Convert to fraction form
    385,109.44/577,676 = 104,632.64/x
  3. Step 3: Cross multiply
    385,109.44x = 577,676 × 104,632.64
  4. Step 4: Simplify right side
    385,109.44x = 60,443,764,944.64
  5. Step 5: Solve for x
    x = 60,443,764,944.64/385,109.44
  6. Step 6: Final answer
    x = 156,952.18

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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.