Home / 306,624-459,936-85,008

Finding the Fourth Proportional to 306,624, 459,936 and 85,008

Calculator

Solution

The fourth proportional to 306,624, 459,936 and 85,008 is: 127,512

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,624 : 459,936 = 85,008 : x
  2. Step 2: Convert to fraction form
    306,624/459,936 = 85,008/x
  3. Step 3: Cross multiply
    306,624x = 459,936 × 85,008
  4. Step 4: Simplify right side
    306,624x = 39,098,239,488
  5. Step 5: Solve for x
    x = 39,098,239,488/306,624
  6. Step 6: Final answer
    x = 127,512

Related Problems

Find fourth proportional to 153,312, 229,968 and 42,504
Half scale
Find fourth proportional to 613,248, 919,872 and 170,016
Double scale
Find fourth proportional to 306,625, 459,937.50 and 85,009
Similar ratio
Find fourth proportional to 459,936, 689,904 and 127,512
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.