Finding the Fourth Proportional to 250,984.90, 346,349.68 and 155,489.55
Calculator
Solution
The fourth proportional to 250,984.90, 346,349.68 and 155,489.55 is: 214,569.70
Step by Step Solution
- Step 1: Write the proportion equation
250,984.90 : 346,349.68 = 155,489.55 : x - Step 2: Convert to fraction form
250,984.90/346,349.68 = 155,489.55/x - Step 3: Cross multiply
250,984.90x = 346,349.68 × 155,489.55 - Step 4: Simplify right side
250,984.90x = 53,853,755,885.84 - Step 5: Solve for x
x = 53,853,755,885.84/250,984.90 - Step 6: Final answer
x = 214,569.70
Related Problems
Find fourth proportional to 125,492.45, 173,174.84 and 77,744.78
Half scale
Find fourth proportional to 501,969.80, 692,699.36 and 310,979.10
Double scale
Find fourth proportional to 250,985.90, 346,351.06 and 155,490.55
Similar ratio
Find fourth proportional to 376,477.35, 519,524.52 and 233,234.33
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.