Finding the Fourth Proportional to 282,812.24, 390,270.84 and 155,486.84
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Solution
The fourth proportional to 282,812.24, 390,270.84 and 155,486.84 is: 214,566.31
Step by Step Solution
- Step 1: Write the proportion equation
282,812.24 : 390,270.84 = 155,486.84 : x - Step 2: Convert to fraction form
282,812.24/390,270.84 = 155,486.84/x - Step 3: Cross multiply
282,812.24x = 390,270.84 × 155,486.84 - Step 4: Simplify right side
282,812.24x = 60,681,977,704.39 - Step 5: Solve for x
x = 60,681,977,704.39/282,812.24 - Step 6: Final answer
x = 214,566.31
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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.