Finding the Fourth Proportional to 298,122.78, 411,372.07 and 201,536.76
Calculator
Solution
The fourth proportional to 298,122.78, 411,372.07 and 201,536.76 is: 278,095.47
Step by Step Solution
- Step 1: Write the proportion equation
298,122.78 : 411,372.07 = 201,536.76 : x - Step 2: Convert to fraction form
298,122.78/411,372.07 = 201,536.76/x - Step 3: Cross multiply
298,122.78x = 411,372.07 × 201,536.76 - Step 4: Simplify right side
298,122.78x = 82,906,592,867.13 - Step 5: Solve for x
x = 82,906,592,867.13/298,122.78 - Step 6: Final answer
x = 278,095.47
Related Problems
Find fourth proportional to 149,061.39, 205,686.03 and 100,768.38
Half scale
Find fourth proportional to 596,245.56, 822,744.14 and 403,073.52
Double scale
Find fourth proportional to 298,123.78, 411,373.45 and 201,537.76
Similar ratio
Find fourth proportional to 447,184.17, 617,058.10 and 302,305.14
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.