Home / 339-467.80-187.58

Finding the Fourth Proportional to 339, 467.80 and 187.58

Calculator

Solution

The fourth proportional to 339, 467.80 and 187.58 is: 258.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    339 : 467.80 = 187.58 : x
  2. Step 2: Convert to fraction form
    339/467.80 = 187.58/x
  3. Step 3: Cross multiply
    339x = 467.80 × 187.58
  4. Step 4: Simplify right side
    339x = 87,746.65
  5. Step 5: Solve for x
    x = 87,746.65/339
  6. Step 6: Final answer
    x = 258.84

Related Problems

Find fourth proportional to 169.50, 233.90 and 93.79
Half scale
Find fourth proportional to 678, 935.59 and 375.15
Double scale
Find fourth proportional to 340, 469.17 and 188.58
Similar ratio
Find fourth proportional to 508.50, 701.69 and 281.36
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.