Home / 238,986-358,479-72,774

Finding the Fourth Proportional to 238,986, 358,479 and 72,774

Calculator

Solution

The fourth proportional to 238,986, 358,479 and 72,774 is: 109,161

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,986 : 358,479 = 72,774 : x
  2. Step 2: Convert to fraction form
    238,986/358,479 = 72,774/x
  3. Step 3: Cross multiply
    238,986x = 358,479 × 72,774
  4. Step 4: Simplify right side
    238,986x = 26,087,950,746
  5. Step 5: Solve for x
    x = 26,087,950,746/238,986
  6. Step 6: Final answer
    x = 109,161

Related Problems

Find fourth proportional to 119,493, 179,239.50 and 36,387
Half scale
Find fourth proportional to 477,972, 716,958 and 145,548
Double scale
Find fourth proportional to 238,987, 358,480.50 and 72,775
Similar ratio
Find fourth proportional to 358,479, 537,718.50 and 109,161
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.