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Finding the Fourth Proportional to 328,408.97, 492,797.93 and 178,659.71

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Solution

The fourth proportional to 328,408.97, 492,797.93 and 178,659.71 is: 268,089.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,408.97 : 492,797.93 = 178,659.71 : x
  2. Step 2: Convert to fraction form
    328,408.97/492,797.93 = 178,659.71/x
  3. Step 3: Cross multiply
    328,408.97x = 492,797.93 × 178,659.71
  4. Step 4: Simplify right side
    328,408.97x = 88,043,134,369.10
  5. Step 5: Solve for x
    x = 88,043,134,369.10/328,408.97
  6. Step 6: Final answer
    x = 268,089.92

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1.5x scale

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.