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Finding the Fourth Proportional to 299,966.40, 450,014.40 and 89,625.60

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Solution

The fourth proportional to 299,966.40, 450,014.40 and 89,625.60 is: 134,457.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,966.40 : 450,014.40 = 89,625.60 : x
  2. Step 2: Convert to fraction form
    299,966.40/450,014.40 = 89,625.60/x
  3. Step 3: Cross multiply
    299,966.40x = 450,014.40 × 89,625.60
  4. Step 4: Simplify right side
    299,966.40x = 40,332,810,608.64
  5. Step 5: Solve for x
    x = 40,332,810,608.64/299,966.40
  6. Step 6: Final answer
    x = 134,457.76

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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.