Finding the Fourth Proportional to 389,008.44, 536,841.14 and 216,924.75
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Solution
The fourth proportional to 389,008.44, 536,841.14 and 216,924.75 is: 299,361.45
Step by Step Solution
- Step 1: Write the proportion equation
389,008.44 : 536,841.14 = 216,924.75 : x - Step 2: Convert to fraction form
389,008.44/536,841.14 = 216,924.75/x - Step 3: Cross multiply
389,008.44x = 536,841.14 × 216,924.75 - Step 4: Simplify right side
389,008.44x = 116,454,128,999.59 - Step 5: Solve for x
x = 116,454,128,999.59/389,008.44 - Step 6: Final answer
x = 299,361.45
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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.