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Finding the Fourth Proportional to 277,328.40, 416,059.80 and 80,336.40

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Solution

The fourth proportional to 277,328.40, 416,059.80 and 80,336.40 is: 120,524.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,328.40 : 416,059.80 = 80,336.40 : x
  2. Step 2: Convert to fraction form
    277,328.40/416,059.80 = 80,336.40/x
  3. Step 3: Cross multiply
    277,328.40x = 416,059.80 × 80,336.40
  4. Step 4: Simplify right side
    277,328.40x = 33,424,746,516.72
  5. Step 5: Solve for x
    x = 33,424,746,516.72/277,328.40
  6. Step 6: Final answer
    x = 120,524.07

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1.5x scale

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.