Home / 614-921-158

Finding the Fourth Proportional to 614, 921 and 158

Calculator

Solution

The fourth proportional to 614, 921 and 158 is: 237

Step by Step Solution

  1. Step 1: Write the proportion equation
    614 : 921 = 158 : x
  2. Step 2: Convert to fraction form
    614/921 = 158/x
  3. Step 3: Cross multiply
    614x = 921 × 158
  4. Step 4: Simplify right side
    614x = 145,518
  5. Step 5: Solve for x
    x = 145,518/614
  6. Step 6: Final answer
    x = 237

Related Problems

Find fourth proportional to 307, 460.50 and 79
Half scale
Find fourth proportional to 1,228, 1,842 and 316
Double scale
Find fourth proportional to 615, 922.50 and 159
Similar ratio
Find fourth proportional to 921, 1,381.50 and 237
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.