Finding the Fourth Proportional to 281,526.97, 388,545.88 and 172,612.05
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Solution
The fourth proportional to 281,526.97, 388,545.88 and 172,612.05 is: 238,228.32
Step by Step Solution
- Step 1: Write the proportion equation
281,526.97 : 388,545.88 = 172,612.05 : x - Step 2: Convert to fraction form
281,526.97/388,545.88 = 172,612.05/x - Step 3: Cross multiply
281,526.97x = 388,545.88 × 172,612.05 - Step 4: Simplify right side
281,526.97x = 67,067,698,572.72 - Step 5: Solve for x
x = 67,067,698,572.72/281,526.97 - Step 6: Final answer
x = 238,228.32
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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.