Home / 355.04-489.77-224

Finding the Fourth Proportional to 355.04, 489.77 and 224

Calculator

Solution

The fourth proportional to 355.04, 489.77 and 224 is: 309

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.04 : 489.77 = 224 : x
  2. Step 2: Convert to fraction form
    355.04/489.77 = 224/x
  3. Step 3: Cross multiply
    355.04x = 489.77 × 224
  4. Step 4: Simplify right side
    355.04x = 109,707.36
  5. Step 5: Solve for x
    x = 109,707.36/355.04
  6. Step 6: Final answer
    x = 309

Related Problems

Find fourth proportional to 177.52, 244.88 and 112
Half scale
Find fourth proportional to 710.08, 979.53 and 448
Double scale
Find fourth proportional to 356.04, 491.14 and 225
Similar ratio
Find fourth proportional to 532.56, 734.65 and 336
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.