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Finding the Fourth Proportional to 328,922.68, 453,913.29 and 178,019.68

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Solution

The fourth proportional to 328,922.68, 453,913.29 and 178,019.68 is: 245,667.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,922.68 : 453,913.29 = 178,019.68 : x
  2. Step 2: Convert to fraction form
    328,922.68/453,913.29 = 178,019.68/x
  3. Step 3: Cross multiply
    328,922.68x = 453,913.29 × 178,019.68
  4. Step 4: Simplify right side
    328,922.68x = 80,805,498,633.55
  5. Step 5: Solve for x
    x = 80,805,498,633.55/328,922.68
  6. Step 6: Final answer
    x = 245,667.15

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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.