Home / 702.31-1,053.47-215.37

Finding the Fourth Proportional to 702.31, 1,053.47 and 215.37

Calculator

Solution

The fourth proportional to 702.31, 1,053.47 and 215.37 is: 323.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.31 : 1,053.47 = 215.37 : x
  2. Step 2: Convert to fraction form
    702.31/1,053.47 = 215.37/x
  3. Step 3: Cross multiply
    702.31x = 1,053.47 × 215.37
  4. Step 4: Simplify right side
    702.31x = 226,885.83
  5. Step 5: Solve for x
    x = 226,885.83/702.31
  6. Step 6: Final answer
    x = 323.06

Related Problems

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.