Finding the Fourth Proportional to 318,378.42, 439,355.07 and 175,135.32
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Solution
The fourth proportional to 318,378.42, 439,355.07 and 175,135.32 is: 241,682.81
Step by Step Solution
- Step 1: Write the proportion equation
318,378.42 : 439,355.07 = 175,135.32 : x - Step 2: Convert to fraction form
318,378.42/439,355.07 = 175,135.32/x - Step 3: Cross multiply
318,378.42x = 439,355.07 × 175,135.32 - Step 4: Simplify right side
318,378.42x = 76,946,590,778.07 - Step 5: Solve for x
x = 76,946,590,778.07/318,378.42 - Step 6: Final answer
x = 241,682.81
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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.