Home / 333-499.50-261

Finding the Fourth Proportional to 333, 499.50 and 261

Calculator

Solution

The fourth proportional to 333, 499.50 and 261 is: 391.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    333 : 499.50 = 261 : x
  2. Step 2: Convert to fraction form
    333/499.50 = 261/x
  3. Step 3: Cross multiply
    333x = 499.50 × 261
  4. Step 4: Simplify right side
    333x = 130,369.50
  5. Step 5: Solve for x
    x = 130,369.50/333
  6. Step 6: Final answer
    x = 391.50

Related Problems

Find fourth proportional to 166.50, 249.75 and 130.50
Half scale
Find fourth proportional to 666, 999 and 522
Double scale
Find fourth proportional to 334, 501 and 262
Similar ratio
Find fourth proportional to 499.50, 749.25 and 391.50
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.