Home / 305,750.24-421,938.27-178,401.23

Finding the Fourth Proportional to 305,750.24, 421,938.27 and 178,401.23

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Solution

The fourth proportional to 305,750.24, 421,938.27 and 178,401.23 is: 246,195.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,750.24 : 421,938.27 = 178,401.23 : x
  2. Step 2: Convert to fraction form
    305,750.24/421,938.27 = 178,401.23/x
  3. Step 3: Cross multiply
    305,750.24x = 421,938.27 × 178,401.23
  4. Step 4: Simplify right side
    305,750.24x = 75,274,304,242.38
  5. Step 5: Solve for x
    x = 75,274,304,242.38/305,750.24
  6. Step 6: Final answer
    x = 246,195.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.