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Finding the Fourth Proportional to 351,388.56, 484,719.48 and 208,008.88

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Solution

The fourth proportional to 351,388.56, 484,719.48 and 208,008.88 is: 286,935.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,388.56 : 484,719.48 = 208,008.88 : x
  2. Step 2: Convert to fraction form
    351,388.56/484,719.48 = 208,008.88/x
  3. Step 3: Cross multiply
    351,388.56x = 484,719.48 × 208,008.88
  4. Step 4: Simplify right side
    351,388.56x = 100,825,956,148.98
  5. Step 5: Solve for x
    x = 100,825,956,148.98/351,388.56
  6. Step 6: Final answer
    x = 286,935.80

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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.