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Finding the Fourth Proportional to 431,735.42, 595,795.45 and 238,138.79

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Solution

The fourth proportional to 431,735.42, 595,795.45 and 238,138.79 is: 328,631.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,735.42 : 595,795.45 = 238,138.79 : x
  2. Step 2: Convert to fraction form
    431,735.42/595,795.45 = 238,138.79/x
  3. Step 3: Cross multiply
    431,735.42x = 595,795.45 × 238,138.79
  4. Step 4: Simplify right side
    431,735.42x = 141,882,004,422.69
  5. Step 5: Solve for x
    x = 141,882,004,422.69/431,735.42
  6. Step 6: Final answer
    x = 328,631.84

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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.