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Finding the Fourth Proportional to 273,412.40, 409,940.40 and 245,418.80

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Solution

The fourth proportional to 273,412.40, 409,940.40 and 245,418.80 is: 367,968.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,412.40 : 409,940.40 = 245,418.80 : x
  2. Step 2: Convert to fraction form
    273,412.40/409,940.40 = 245,418.80/x
  3. Step 3: Cross multiply
    273,412.40x = 409,940.40 × 245,418.80
  4. Step 4: Simplify right side
    273,412.40x = 100,607,081,039.52
  5. Step 5: Solve for x
    x = 100,607,081,039.52/273,412.40
  6. Step 6: Final answer
    x = 367,968.25

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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.