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Finding the Fourth Proportional to 351,019.32, 484,406.64 and 198,089.88

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Solution

The fourth proportional to 351,019.32, 484,406.64 and 198,089.88 is: 273,364.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,019.32 : 484,406.64 = 198,089.88 : x
  2. Step 2: Convert to fraction form
    351,019.32/484,406.64 = 198,089.88/x
  3. Step 3: Cross multiply
    351,019.32x = 484,406.64 × 198,089.88
  4. Step 4: Simplify right side
    351,019.32x = 95,956,053,188.80
  5. Step 5: Solve for x
    x = 95,956,053,188.80/351,019.32
  6. Step 6: Final answer
    x = 273,364.02

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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.