Home / 647.47-971.21-185.29

Finding the Fourth Proportional to 647.47, 971.21 and 185.29

Calculator

Solution

The fourth proportional to 647.47, 971.21 and 185.29 is: 277.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    647.47 : 971.21 = 185.29 : x
  2. Step 2: Convert to fraction form
    647.47/971.21 = 185.29/x
  3. Step 3: Cross multiply
    647.47x = 971.21 × 185.29
  4. Step 4: Simplify right side
    647.47x = 179,951.11
  5. Step 5: Solve for x
    x = 179,951.11/647.47
  6. Step 6: Final answer
    x = 277.93

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.