Finding the Fourth Proportional to 318,716.24, 439,729.08 and 180,872.32
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Solution
The fourth proportional to 318,716.24, 439,729.08 and 180,872.32 is: 249,547.43
Step by Step Solution
- Step 1: Write the proportion equation
318,716.24 : 439,729.08 = 180,872.32 : x - Step 2: Convert to fraction form
318,716.24/439,729.08 = 180,872.32/x - Step 3: Cross multiply
318,716.24x = 439,729.08 × 180,872.32 - Step 4: Simplify right side
318,716.24x = 79,534,818,871.07 - Step 5: Solve for x
x = 79,534,818,871.07/318,716.24 - Step 6: Final answer
x = 249,547.43
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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.