Home / 434-651-338

Finding the Fourth Proportional to 434, 651 and 338

Calculator

Solution

The fourth proportional to 434, 651 and 338 is: 507

Step by Step Solution

  1. Step 1: Write the proportion equation
    434 : 651 = 338 : x
  2. Step 2: Convert to fraction form
    434/651 = 338/x
  3. Step 3: Cross multiply
    434x = 651 × 338
  4. Step 4: Simplify right side
    434x = 220,038
  5. Step 5: Solve for x
    x = 220,038/434
  6. Step 6: Final answer
    x = 507

Related Problems

Find fourth proportional to 217, 325.50 and 169
Half scale
Find fourth proportional to 868, 1,302 and 676
Double scale
Find fourth proportional to 435, 652.50 and 339
Similar ratio
Find fourth proportional to 651, 976.50 and 507
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.