Home / 749-1,123.50-236

Finding the Fourth Proportional to 749, 1,123.50 and 236

Calculator

Solution

The fourth proportional to 749, 1,123.50 and 236 is: 354

Step by Step Solution

  1. Step 1: Write the proportion equation
    749 : 1,123.50 = 236 : x
  2. Step 2: Convert to fraction form
    749/1,123.50 = 236/x
  3. Step 3: Cross multiply
    749x = 1,123.50 × 236
  4. Step 4: Simplify right side
    749x = 265,146
  5. Step 5: Solve for x
    x = 265,146/749
  6. Step 6: Final answer
    x = 354

Related Problems

Find fourth proportional to 374.50, 561.75 and 118
Half scale
Find fourth proportional to 1,498, 2,247 and 472
Double scale
Find fourth proportional to 750, 1,125 and 237
Similar ratio
Find fourth proportional to 1,123.50, 1,685.25 and 354
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.