Finding the Fourth Proportional to 318,157.90, 439,060.84 and 174,918.94
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Solution
The fourth proportional to 318,157.90, 439,060.84 and 174,918.94 is: 241,389.75
Step by Step Solution
- Step 1: Write the proportion equation
318,157.90 : 439,060.84 = 174,918.94 : x - Step 2: Convert to fraction form
318,157.90/439,060.84 = 174,918.94/x - Step 3: Cross multiply
318,157.90x = 439,060.84 × 174,918.94 - Step 4: Simplify right side
318,157.90x = 76,800,055,193.36 - Step 5: Solve for x
x = 76,800,055,193.36/318,157.90 - Step 6: Final answer
x = 241,389.75
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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.