Finding the Fourth Proportional to 282,428.52, 390,004.52 and 210,683.99
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Solution
The fourth proportional to 282,428.52, 390,004.52 and 210,683.99 is: 290,932.75
Step by Step Solution
- Step 1: Write the proportion equation
282,428.52 : 390,004.52 = 210,683.99 : x - Step 2: Convert to fraction form
282,428.52/390,004.52 = 210,683.99/x - Step 3: Cross multiply
282,428.52x = 390,004.52 × 210,683.99 - Step 4: Simplify right side
282,428.52x = 82,167,705,388.19 - Step 5: Solve for x
x = 82,167,705,388.19/282,428.52 - Step 6: Final answer
x = 290,932.75
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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.