Finding the Fourth Proportional to 318,317.10, 439,130.34 and 190,771.26
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Solution
The fourth proportional to 318,317.10, 439,130.34 and 190,771.26 is: 263,176.09
Step by Step Solution
- Step 1: Write the proportion equation
318,317.10 : 439,130.34 = 190,771.26 : x - Step 2: Convert to fraction form
318,317.10/439,130.34 = 190,771.26/x - Step 3: Cross multiply
318,317.10x = 439,130.34 × 190,771.26 - Step 4: Simplify right side
318,317.10x = 83,773,448,266.03 - Step 5: Solve for x
x = 83,773,448,266.03/318,317.10 - Step 6: Final answer
x = 263,176.09
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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.