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Finding the Fourth Proportional to 431,880.39, 595,990.99 and 238,289.88

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Solution

The fourth proportional to 431,880.39, 595,990.99 and 238,289.88 is: 328,837.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,880.39 : 595,990.99 = 238,289.88 : x
  2. Step 2: Convert to fraction form
    431,880.39/595,990.99 = 238,289.88/x
  3. Step 3: Cross multiply
    431,880.39x = 595,990.99 × 238,289.88
  4. Step 4: Simplify right side
    431,880.39x = 142,018,622,093.65
  5. Step 5: Solve for x
    x = 142,018,622,093.65/431,880.39
  6. Step 6: Final answer
    x = 328,837.86

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1.5x scale

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.