Home / 212-292.62-143

Finding the Fourth Proportional to 212, 292.62 and 143

Calculator

Solution

The fourth proportional to 212, 292.62 and 143 is: 197.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    212 : 292.62 = 143 : x
  2. Step 2: Convert to fraction form
    212/292.62 = 143/x
  3. Step 3: Cross multiply
    212x = 292.62 × 143
  4. Step 4: Simplify right side
    212x = 41,844.66
  5. Step 5: Solve for x
    x = 41,844.66/212
  6. Step 6: Final answer
    x = 197.38

Related Problems

Find fourth proportional to 106, 146.31 and 71.50
Half scale
Find fourth proportional to 424, 585.24 and 286
Double scale
Find fourth proportional to 213, 294 and 144
Similar ratio
Find fourth proportional to 318, 438.93 and 214.50
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.