Finding the Fourth Proportional to 318,645.75, 477,968.63 and 97,029.75
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Solution
The fourth proportional to 318,645.75, 477,968.63 and 97,029.75 is: 145,544.63
Step by Step Solution
- Step 1: Write the proportion equation
318,645.75 : 477,968.63 = 97,029.75 : x - Step 2: Convert to fraction form
318,645.75/477,968.63 = 97,029.75/x - Step 3: Cross multiply
318,645.75x = 477,968.63 × 97,029.75 - Step 4: Simplify right side
318,645.75x = 46,377,176,191.59 - Step 5: Solve for x
x = 46,377,176,191.59/318,645.75 - Step 6: Final answer
x = 145,544.63
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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.