Finding the Fourth Proportional to 388,829.88, 536,585.23 and 209,981.88
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Solution
The fourth proportional to 388,829.88, 536,585.23 and 209,981.88 is: 289,774.99
Step by Step Solution
- Step 1: Write the proportion equation
388,829.88 : 536,585.23 = 209,981.88 : x - Step 2: Convert to fraction form
388,829.88/536,585.23 = 209,981.88/x - Step 3: Cross multiply
388,829.88x = 536,585.23 × 209,981.88 - Step 4: Simplify right side
388,829.88x = 112,673,175,375.63 - Step 5: Solve for x
x = 112,673,175,375.63/388,829.88 - Step 6: Final answer
x = 289,774.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.