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Finding the Fourth Proportional to 355,364.18, 490,540.83 and 240,586.70

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Solution

The fourth proportional to 355,364.18, 490,540.83 and 240,586.70 is: 332,103.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,364.18 : 490,540.83 = 240,586.70 : x
  2. Step 2: Convert to fraction form
    355,364.18/490,540.83 = 240,586.70/x
  3. Step 3: Cross multiply
    355,364.18x = 490,540.83 × 240,586.70
  4. Step 4: Simplify right side
    355,364.18x = 118,017,599,504.96
  5. Step 5: Solve for x
    x = 118,017,599,504.96/355,364.18
  6. Step 6: Final answer
    x = 332,103.25

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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.