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Finding the Fourth Proportional to 302,649.60, 453,974.40 and 81,033.60

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Solution

The fourth proportional to 302,649.60, 453,974.40 and 81,033.60 is: 121,550.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,649.60 : 453,974.40 = 81,033.60 : x
  2. Step 2: Convert to fraction form
    302,649.60/453,974.40 = 81,033.60/x
  3. Step 3: Cross multiply
    302,649.60x = 453,974.40 × 81,033.60
  4. Step 4: Simplify right side
    302,649.60x = 36,787,179,939.84
  5. Step 5: Solve for x
    x = 36,787,179,939.84/302,649.60
  6. Step 6: Final answer
    x = 121,550.40

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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.