Home / 388-533.76-344.24

Finding the Fourth Proportional to 388, 533.76 and 344.24

Calculator

Solution

The fourth proportional to 388, 533.76 and 344.24 is: 473.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    388 : 533.76 = 344.24 : x
  2. Step 2: Convert to fraction form
    388/533.76 = 344.24/x
  3. Step 3: Cross multiply
    388x = 533.76 × 344.24
  4. Step 4: Simplify right side
    388x = 183,741.54
  5. Step 5: Solve for x
    x = 183,741.54/388
  6. Step 6: Final answer
    x = 473.56

Related Problems

Find fourth proportional to 194, 266.88 and 172.12
Half scale
Find fourth proportional to 776, 1,067.52 and 688.48
Double scale
Find fourth proportional to 389, 535.14 and 345.24
Similar ratio
Find fourth proportional to 582, 800.64 and 516.36
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.