Home / 355.22-532-286.58

Finding the Fourth Proportional to 355.22, 532 and 286.58

Calculator

Solution

The fourth proportional to 355.22, 532 and 286.58 is: 429.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.22 : 532 = 286.58 : x
  2. Step 2: Convert to fraction form
    355.22/532 = 286.58/x
  3. Step 3: Cross multiply
    355.22x = 532 × 286.58
  4. Step 4: Simplify right side
    355.22x = 152,460.56
  5. Step 5: Solve for x
    x = 152,460.56/355.22
  6. Step 6: Final answer
    x = 429.20

Related Problems

Find fourth proportional to 177.61, 266 and 143.29
Half scale
Find fourth proportional to 710.44, 1,064 and 573.16
Double scale
Find fourth proportional to 356.22, 533.50 and 287.58
Similar ratio
Find fourth proportional to 532.83, 798 and 429.87
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.