Finding the Fourth Proportional to 368,428.80, 552,934.80 and 143,896.80
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Solution
The fourth proportional to 368,428.80, 552,934.80 and 143,896.80 is: 215,959.09
Step by Step Solution
- Step 1: Write the proportion equation
368,428.80 : 552,934.80 = 143,896.80 : x - Step 2: Convert to fraction form
368,428.80/552,934.80 = 143,896.80/x - Step 3: Cross multiply
368,428.80x = 552,934.80 × 143,896.80 - Step 4: Simplify right side
368,428.80x = 79,565,548,328.64 - Step 5: Solve for x
x = 79,565,548,328.64/368,428.80 - Step 6: Final answer
x = 215,959.09
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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.