Finding the Fourth Proportional to 318,378.79, 439,364.82 and 175,135.15
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Solution
The fourth proportional to 318,378.79, 439,364.82 and 175,135.15 is: 241,687.66
Step by Step Solution
- Step 1: Write the proportion equation
318,378.79 : 439,364.82 = 175,135.15 : x - Step 2: Convert to fraction form
318,378.79/439,364.82 = 175,135.15/x - Step 3: Cross multiply
318,378.79x = 439,364.82 × 175,135.15 - Step 4: Simplify right side
318,378.79x = 76,948,223,655.42 - Step 5: Solve for x
x = 76,948,223,655.42/318,378.79 - Step 6: Final answer
x = 241,687.66
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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.