Home / 901-1,351.50-217

Finding the Fourth Proportional to 901, 1,351.50 and 217

Calculator

Solution

The fourth proportional to 901, 1,351.50 and 217 is: 325.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    901 : 1,351.50 = 217 : x
  2. Step 2: Convert to fraction form
    901/1,351.50 = 217/x
  3. Step 3: Cross multiply
    901x = 1,351.50 × 217
  4. Step 4: Simplify right side
    901x = 293,275.50
  5. Step 5: Solve for x
    x = 293,275.50/901
  6. Step 6: Final answer
    x = 325.50

Related Problems

Find fourth proportional to 450.50, 675.75 and 108.50
Half scale
Find fourth proportional to 1,802, 2,703 and 434
Double scale
Find fourth proportional to 902, 1,353 and 218
Similar ratio
Find fourth proportional to 1,351.50, 2,027.25 and 325.50
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.