Home / 261,024-391,536-113,280

Finding the Fourth Proportional to 261,024, 391,536 and 113,280

Calculator

Solution

The fourth proportional to 261,024, 391,536 and 113,280 is: 169,920

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,024 : 391,536 = 113,280 : x
  2. Step 2: Convert to fraction form
    261,024/391,536 = 113,280/x
  3. Step 3: Cross multiply
    261,024x = 391,536 × 113,280
  4. Step 4: Simplify right side
    261,024x = 44,353,198,080
  5. Step 5: Solve for x
    x = 44,353,198,080/261,024
  6. Step 6: Final answer
    x = 169,920

Related Problems

Find fourth proportional to 130,512, 195,768 and 56,640
Half scale
Find fourth proportional to 522,048, 783,072 and 226,560
Double scale
Find fourth proportional to 261,025, 391,537.50 and 113,281
Similar ratio
Find fourth proportional to 391,536, 587,304 and 169,920
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.