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Finding the Fourth Proportional to 305,005.60, 456,471.60 and 267,680.80

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Solution

The fourth proportional to 305,005.60, 456,471.60 and 267,680.80 is: 400,611.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,005.60 : 456,471.60 = 267,680.80 : x
  2. Step 2: Convert to fraction form
    305,005.60/456,471.60 = 267,680.80/x
  3. Step 3: Cross multiply
    305,005.60x = 456,471.60 × 267,680.80
  4. Step 4: Simplify right side
    305,005.60x = 122,188,683,065.28
  5. Step 5: Solve for x
    x = 122,188,683,065.28/305,005.60
  6. Step 6: Final answer
    x = 400,611.28

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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.