Finding the Fourth Proportional to 201,125.80, 301,688.70 and 147,981.70
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Solution
The fourth proportional to 201,125.80, 301,688.70 and 147,981.70 is: 221,972.55
Step by Step Solution
- Step 1: Write the proportion equation
201,125.80 : 301,688.70 = 147,981.70 : x - Step 2: Convert to fraction form
201,125.80/301,688.70 = 147,981.70/x - Step 3: Cross multiply
201,125.80x = 301,688.70 × 147,981.70 - Step 4: Simplify right side
201,125.80x = 44,644,406,696.79 - Step 5: Solve for x
x = 44,644,406,696.79/201,125.80 - Step 6: Final answer
x = 221,972.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.