Finding the Fourth Proportional to 318,433.31, 439,431.73 and 175,195.74
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Solution
The fourth proportional to 318,433.31, 439,431.73 and 175,195.74 is: 241,766.70
Step by Step Solution
- Step 1: Write the proportion equation
318,433.31 : 439,431.73 = 175,195.74 : x - Step 2: Convert to fraction form
318,433.31/439,431.73 = 175,195.74/x - Step 3: Cross multiply
318,433.31x = 439,431.73 × 175,195.74 - Step 4: Simplify right side
318,433.31x = 76,986,569,312.19 - Step 5: Solve for x
x = 76,986,569,312.19/318,433.31 - Step 6: Final answer
x = 241,766.70
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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.