Home / 593.80-890.50-198.40

Finding the Fourth Proportional to 593.80, 890.50 and 198.40

Calculator

Solution

The fourth proportional to 593.80, 890.50 and 198.40 is: 297.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.80 : 890.50 = 198.40 : x
  2. Step 2: Convert to fraction form
    593.80/890.50 = 198.40/x
  3. Step 3: Cross multiply
    593.80x = 890.50 × 198.40
  4. Step 4: Simplify right side
    593.80x = 176,675.20
  5. Step 5: Solve for x
    x = 176,675.20/593.80
  6. Step 6: Final answer
    x = 297.53

Related Problems

Find fourth proportional to 296.90, 445.25 and 99.20
Half scale
Find fourth proportional to 1,187.60, 1,781 and 396.80
Double scale
Find fourth proportional to 594.80, 892 and 199.40
Similar ratio
Find fourth proportional to 890.70, 1,335.75 and 297.60
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.