Home / 448.32-618-349.92

Finding the Fourth Proportional to 448.32, 618 and 349.92

Calculator

Solution

The fourth proportional to 448.32, 618 and 349.92 is: 482.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.32 : 618 = 349.92 : x
  2. Step 2: Convert to fraction form
    448.32/618 = 349.92/x
  3. Step 3: Cross multiply
    448.32x = 618 × 349.92
  4. Step 4: Simplify right side
    448.32x = 216,250.56
  5. Step 5: Solve for x
    x = 216,250.56/448.32
  6. Step 6: Final answer
    x = 482.36

Related Problems

Find fourth proportional to 224.16, 309 and 174.96
Half scale
Find fourth proportional to 896.64, 1,236 and 699.84
Double scale
Find fourth proportional to 449.32, 619.38 and 350.92
Similar ratio
Find fourth proportional to 672.48, 927 and 524.88
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.