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Finding the Fourth Proportional to 342,382.60, 512,497.50 and 235,138.60

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Solution

The fourth proportional to 342,382.60, 512,497.50 and 235,138.60 is: 351,968.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,382.60 : 512,497.50 = 235,138.60 : x
  2. Step 2: Convert to fraction form
    342,382.60/512,497.50 = 235,138.60/x
  3. Step 3: Cross multiply
    342,382.60x = 512,497.50 × 235,138.60
  4. Step 4: Simplify right side
    342,382.60x = 120,507,944,653.50
  5. Step 5: Solve for x
    x = 120,507,944,653.50/342,382.60
  6. Step 6: Final answer
    x = 351,968.66

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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.