Finding the Fourth Proportional to 318,431.67, 439,435.66 and 175,188.63
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Solution
The fourth proportional to 318,431.67, 439,435.66 and 175,188.63 is: 241,760.28
Step by Step Solution
- Step 1: Write the proportion equation
318,431.67 : 439,435.66 = 175,188.63 : x - Step 2: Convert to fraction form
318,431.67/439,435.66 = 175,188.63/x - Step 3: Cross multiply
318,431.67x = 439,435.66 × 175,188.63 - Step 4: Simplify right side
318,431.67x = 76,984,131,248.55 - Step 5: Solve for x
x = 76,984,131,248.55/318,431.67 - Step 6: Final answer
x = 241,760.28
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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.