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Finding the Fourth Proportional to 311,325.20, 466,987.80 and 100,984.40

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Solution

The fourth proportional to 311,325.20, 466,987.80 and 100,984.40 is: 151,476.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,325.20 : 466,987.80 = 100,984.40 : x
  2. Step 2: Convert to fraction form
    311,325.20/466,987.80 = 100,984.40/x
  3. Step 3: Cross multiply
    311,325.20x = 466,987.80 × 100,984.40
  4. Step 4: Simplify right side
    311,325.20x = 47,158,482,790.32
  5. Step 5: Solve for x
    x = 47,158,482,790.32/311,325.20
  6. Step 6: Final answer
    x = 151,476.60

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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.