Home / 277-415.56-147

Finding the Fourth Proportional to 277, 415.56 and 147

Calculator

Solution

The fourth proportional to 277, 415.56 and 147 is: 220.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    277 : 415.56 = 147 : x
  2. Step 2: Convert to fraction form
    277/415.56 = 147/x
  3. Step 3: Cross multiply
    277x = 415.56 × 147
  4. Step 4: Simplify right side
    277x = 61,087.32
  5. Step 5: Solve for x
    x = 61,087.32/277
  6. Step 6: Final answer
    x = 220.53

Related Problems

Find fourth proportional to 138.50, 207.78 and 73.50
Half scale
Find fourth proportional to 554, 831.12 and 294
Double scale
Find fourth proportional to 278, 417.06 and 148
Similar ratio
Find fourth proportional to 415.50, 623.34 and 220.50
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.