Home / 389,238-583,857-93,750

Finding the Fourth Proportional to 389,238, 583,857 and 93,750

Calculator

Solution

The fourth proportional to 389,238, 583,857 and 93,750 is: 140,625

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,238 : 583,857 = 93,750 : x
  2. Step 2: Convert to fraction form
    389,238/583,857 = 93,750/x
  3. Step 3: Cross multiply
    389,238x = 583,857 × 93,750
  4. Step 4: Simplify right side
    389,238x = 54,736,593,750
  5. Step 5: Solve for x
    x = 54,736,593,750/389,238
  6. Step 6: Final answer
    x = 140,625

Related Problems

Find fourth proportional to 194,619, 291,928.50 and 46,875
Half scale
Find fourth proportional to 778,476, 1,167,714 and 187,500
Double scale
Find fourth proportional to 389,239, 583,858.50 and 93,751
Similar ratio
Find fourth proportional to 583,857, 875,785.50 and 140,625
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.