Finding the Fourth Proportional to 348,038.80, 521,021.40 and 207,725.20
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Solution
The fourth proportional to 348,038.80, 521,021.40 and 207,725.20 is: 310,968.99
Step by Step Solution
- Step 1: Write the proportion equation
348,038.80 : 521,021.40 = 207,725.20 : x - Step 2: Convert to fraction form
348,038.80/521,021.40 = 207,725.20/x - Step 3: Cross multiply
348,038.80x = 521,021.40 × 207,725.20 - Step 4: Simplify right side
348,038.80x = 108,229,274,519.28 - Step 5: Solve for x
x = 108,229,274,519.28/348,038.80 - Step 6: Final answer
x = 310,968.99
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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.