Finding the Fourth Proportional to 282,634.36, 390,102.48 and 161,844.99
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Solution
The fourth proportional to 282,634.36, 390,102.48 and 161,844.99 is: 223,384.48
Step by Step Solution
- Step 1: Write the proportion equation
282,634.36 : 390,102.48 = 161,844.99 : x - Step 2: Convert to fraction form
282,634.36/390,102.48 = 161,844.99/x - Step 3: Cross multiply
282,634.36x = 390,102.48 × 161,844.99 - Step 4: Simplify right side
282,634.36x = 63,136,130,511.69 - Step 5: Solve for x
x = 63,136,130,511.69/282,634.36 - Step 6: Final answer
x = 223,384.48
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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.