Home / 307,152-460,728-85,536

Finding the Fourth Proportional to 307,152, 460,728 and 85,536

Calculator

Solution

The fourth proportional to 307,152, 460,728 and 85,536 is: 128,304

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,152 : 460,728 = 85,536 : x
  2. Step 2: Convert to fraction form
    307,152/460,728 = 85,536/x
  3. Step 3: Cross multiply
    307,152x = 460,728 × 85,536
  4. Step 4: Simplify right side
    307,152x = 39,408,830,208
  5. Step 5: Solve for x
    x = 39,408,830,208/307,152
  6. Step 6: Final answer
    x = 128,304

Related Problems

Find fourth proportional to 153,576, 230,364 and 42,768
Half scale
Find fourth proportional to 614,304, 921,456 and 171,072
Double scale
Find fourth proportional to 307,153, 460,729.50 and 85,537
Similar ratio
Find fourth proportional to 460,728, 691,092 and 128,304
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.