Home / 314.08-432-288

Finding the Fourth Proportional to 314.08, 432 and 288

Calculator

Solution

The fourth proportional to 314.08, 432 and 288 is: 396.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.08 : 432 = 288 : x
  2. Step 2: Convert to fraction form
    314.08/432 = 288/x
  3. Step 3: Cross multiply
    314.08x = 432 × 288
  4. Step 4: Simplify right side
    314.08x = 124,416
  5. Step 5: Solve for x
    x = 124,416/314.08
  6. Step 6: Final answer
    x = 396.13

Related Problems

Find fourth proportional to 157.04, 216 and 144
Half scale
Find fourth proportional to 628.16, 864 and 576
Double scale
Find fourth proportional to 315.08, 433.38 and 289
Similar ratio
Find fourth proportional to 471.12, 648 and 432
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.