Home / 297.75-444.32-258.87

Finding the Fourth Proportional to 297.75, 444.32 and 258.87

Calculator

Solution

The fourth proportional to 297.75, 444.32 and 258.87 is: 386.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.75 : 444.32 = 258.87 : x
  2. Step 2: Convert to fraction form
    297.75/444.32 = 258.87/x
  3. Step 3: Cross multiply
    297.75x = 444.32 × 258.87
  4. Step 4: Simplify right side
    297.75x = 115,019.82
  5. Step 5: Solve for x
    x = 115,019.82/297.75
  6. Step 6: Final answer
    x = 386.30

Related Problems

Find fourth proportional to 148.88, 222.16 and 129.44
Half scale
Find fourth proportional to 595.50, 888.63 and 517.74
Double scale
Find fourth proportional to 298.75, 445.81 and 259.87
Similar ratio
Find fourth proportional to 446.63, 666.47 and 388.31
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.