Home / 461-691.86-268.58

Finding the Fourth Proportional to 461, 691.86 and 268.58

Calculator

Solution

The fourth proportional to 461, 691.86 and 268.58 is: 403.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    461 : 691.86 = 268.58 : x
  2. Step 2: Convert to fraction form
    461/691.86 = 268.58/x
  3. Step 3: Cross multiply
    461x = 691.86 × 268.58
  4. Step 4: Simplify right side
    461x = 185,819.76
  5. Step 5: Solve for x
    x = 185,819.76/461
  6. Step 6: Final answer
    x = 403.08

Related Problems

Find fourth proportional to 230.50, 345.93 and 134.29
Half scale
Find fourth proportional to 922, 1,383.72 and 537.16
Double scale
Find fourth proportional to 462, 693.36 and 269.58
Similar ratio
Find fourth proportional to 691.50, 1,037.79 and 402.87
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.