Home / 695-1,042.66-239

Finding the Fourth Proportional to 695, 1,042.66 and 239

Calculator

Solution

The fourth proportional to 695, 1,042.66 and 239 is: 358.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    695 : 1,042.66 = 239 : x
  2. Step 2: Convert to fraction form
    695/1,042.66 = 239/x
  3. Step 3: Cross multiply
    695x = 1,042.66 × 239
  4. Step 4: Simplify right side
    695x = 249,195.74
  5. Step 5: Solve for x
    x = 249,195.74/695
  6. Step 6: Final answer
    x = 358.56

Related Problems

Find fourth proportional to 347.50, 521.33 and 119.50
Half scale
Find fourth proportional to 1,390, 2,085.32 and 478
Double scale
Find fourth proportional to 696, 1,044.16 and 240
Similar ratio
Find fourth proportional to 1,042.50, 1,563.99 and 358.50
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.