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Finding the Fourth Proportional to 315,364.74, 435,136.71 and 200,601.60

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Solution

The fourth proportional to 315,364.74, 435,136.71 and 200,601.60 is: 276,787.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,364.74 : 435,136.71 = 200,601.60 : x
  2. Step 2: Convert to fraction form
    315,364.74/435,136.71 = 200,601.60/x
  3. Step 3: Cross multiply
    315,364.74x = 435,136.71 × 200,601.60
  4. Step 4: Simplify right side
    315,364.74x = 87,289,120,244.74
  5. Step 5: Solve for x
    x = 87,289,120,244.74/315,364.74
  6. Step 6: Final answer
    x = 276,787.82

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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.