Finding the Fourth Proportional to 203,283.78, 280,557.99 and 122,756.82
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Solution
The fourth proportional to 203,283.78, 280,557.99 and 122,756.82 is: 169,420.34
Step by Step Solution
- Step 1: Write the proportion equation
203,283.78 : 280,557.99 = 122,756.82 : x - Step 2: Convert to fraction form
203,283.78/280,557.99 = 122,756.82/x - Step 3: Cross multiply
203,283.78x = 280,557.99 × 122,756.82 - Step 4: Simplify right side
203,283.78x = 34,440,406,677.99 - Step 5: Solve for x
x = 34,440,406,677.99/203,283.78 - Step 6: Final answer
x = 169,420.34
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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.