Finding the Fourth Proportional to 339,720.10, 509,968.95 and 199,557.70
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Solution
The fourth proportional to 339,720.10, 509,968.95 and 199,557.70 is: 299,564.94
Step by Step Solution
- Step 1: Write the proportion equation
339,720.10 : 509,968.95 = 199,557.70 : x - Step 2: Convert to fraction form
339,720.10/509,968.95 = 199,557.70/x - Step 3: Cross multiply
339,720.10x = 509,968.95 × 199,557.70 - Step 4: Simplify right side
339,720.10x = 101,768,230,733.42 - Step 5: Solve for x
x = 101,768,230,733.42/339,720.10 - Step 6: Final answer
x = 299,564.94
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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.