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Finding the Fourth Proportional to 351,308.69, 484,871.67 and 200,405.69

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Solution

The fourth proportional to 351,308.69, 484,871.67 and 200,405.69 is: 276,597.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,308.69 : 484,871.67 = 200,405.69 : x
  2. Step 2: Convert to fraction form
    351,308.69/484,871.67 = 200,405.69/x
  3. Step 3: Cross multiply
    351,308.69x = 484,871.67 × 200,405.69
  4. Step 4: Simplify right side
    351,308.69x = 97,171,041,587.80
  5. Step 5: Solve for x
    x = 97,171,041,587.80/351,308.69
  6. Step 6: Final answer
    x = 276,597.32

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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.