Home / 307,401.96-424,142.26-186,540.37

Finding the Fourth Proportional to 307,401.96, 424,142.26 and 186,540.37

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Solution

The fourth proportional to 307,401.96, 424,142.26 and 186,540.37 is: 257,381.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,401.96 : 424,142.26 = 186,540.37 : x
  2. Step 2: Convert to fraction form
    307,401.96/424,142.26 = 186,540.37/x
  3. Step 3: Cross multiply
    307,401.96x = 424,142.26 × 186,540.37
  4. Step 4: Simplify right side
    307,401.96x = 79,119,654,113.04
  5. Step 5: Solve for x
    x = 79,119,654,113.04/307,401.96
  6. Step 6: Final answer
    x = 257,381.75

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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.