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Finding the Fourth Proportional to 328,217.60, 492,034.80 and 194,956.40

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Solution

The fourth proportional to 328,217.60, 492,034.80 and 194,956.40 is: 292,261.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,217.60 : 492,034.80 = 194,956.40 : x
  2. Step 2: Convert to fraction form
    328,217.60/492,034.80 = 194,956.40/x
  3. Step 3: Cross multiply
    328,217.60x = 492,034.80 × 194,956.40
  4. Step 4: Simplify right side
    328,217.60x = 95,925,333,282.72
  5. Step 5: Solve for x
    x = 95,925,333,282.72/328,217.60
  6. Step 6: Final answer
    x = 292,261.39

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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.