Finding the Fourth Proportional to 281,646.99, 388,688.40 and 160,827.09
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Solution
The fourth proportional to 281,646.99, 388,688.40 and 160,827.09 is: 221,950.27
Step by Step Solution
- Step 1: Write the proportion equation
281,646.99 : 388,688.40 = 160,827.09 : x - Step 2: Convert to fraction form
281,646.99/388,688.40 = 160,827.09/x - Step 3: Cross multiply
281,646.99x = 388,688.40 × 160,827.09 - Step 4: Simplify right side
281,646.99x = 62,511,624,288.76 - Step 5: Solve for x
x = 62,511,624,288.76/281,646.99 - Step 6: Final answer
x = 221,950.27
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1.5x scale
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.