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Finding the Fourth Proportional to 311,422.75, 466,838.88 and 100,913.06

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Solution

The fourth proportional to 311,422.75, 466,838.88 and 100,913.06 is: 151,273.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,422.75 : 466,838.88 = 100,913.06 : x
  2. Step 2: Convert to fraction form
    311,422.75/466,838.88 = 100,913.06/x
  3. Step 3: Cross multiply
    311,422.75x = 466,838.88 × 100,913.06
  4. Step 4: Simplify right side
    311,422.75x = 47,110,140,696.45
  5. Step 5: Solve for x
    x = 47,110,140,696.45/311,422.75
  6. Step 6: Final answer
    x = 151,273.92

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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.