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Finding the Fourth Proportional to 351,725.86, 485,549.05 and 235,639.21

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Solution

The fourth proportional to 351,725.86, 485,549.05 and 235,639.21 is: 325,294.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,725.86 : 485,549.05 = 235,639.21 : x
  2. Step 2: Convert to fraction form
    351,725.86/485,549.05 = 235,639.21/x
  3. Step 3: Cross multiply
    351,725.86x = 485,549.05 × 235,639.21
  4. Step 4: Simplify right side
    351,725.86x = 114,414,394,558.25
  5. Step 5: Solve for x
    x = 114,414,394,558.25/351,725.86
  6. Step 6: Final answer
    x = 325,294.24

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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.