Home / 393,434.49-590,742.23-225,144.84

Finding the Fourth Proportional to 393,434.49, 590,742.23 and 225,144.84

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Solution

The fourth proportional to 393,434.49, 590,742.23 and 225,144.84 is: 338,055.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,434.49 : 590,742.23 = 225,144.84 : x
  2. Step 2: Convert to fraction form
    393,434.49/590,742.23 = 225,144.84/x
  3. Step 3: Cross multiply
    393,434.49x = 590,742.23 × 225,144.84
  4. Step 4: Simplify right side
    393,434.49x = 133,002,563,728.87
  5. Step 5: Solve for x
    x = 133,002,563,728.87/393,434.49
  6. Step 6: Final answer
    x = 338,055.17

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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.