Finding the Fourth Proportional to 281,767.12, 388,878.45 and 174,371.74
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Solution
The fourth proportional to 281,767.12, 388,878.45 and 174,371.74 is: 240,657.65
Step by Step Solution
- Step 1: Write the proportion equation
281,767.12 : 388,878.45 = 174,371.74 : x - Step 2: Convert to fraction form
281,767.12/388,878.45 = 174,371.74/x - Step 3: Cross multiply
281,767.12x = 388,878.45 × 174,371.74 - Step 4: Simplify right side
281,767.12x = 67,809,411,975.00 - Step 5: Solve for x
x = 67,809,411,975.00/281,767.12 - Step 6: Final answer
x = 240,657.65
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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.