Home / 476-714.20-313.64

Finding the Fourth Proportional to 476, 714.20 and 313.64

Calculator

Solution

The fourth proportional to 476, 714.20 and 313.64 is: 470.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    476 : 714.20 = 313.64 : x
  2. Step 2: Convert to fraction form
    476/714.20 = 313.64/x
  3. Step 3: Cross multiply
    476x = 714.20 × 313.64
  4. Step 4: Simplify right side
    476x = 224,001.69
  5. Step 5: Solve for x
    x = 224,001.69/476
  6. Step 6: Final answer
    x = 470.59

Related Problems

Find fourth proportional to 238, 357.10 and 156.82
Half scale
Find fourth proportional to 952, 1,428.40 and 627.28
Double scale
Find fourth proportional to 477, 715.70 and 314.64
Similar ratio
Find fourth proportional to 714, 1,071.30 and 470.46
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.