Finding the Fourth Proportional to 399,768.84, 599,967.95 and 186,426.99
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Solution
The fourth proportional to 399,768.84, 599,967.95 and 186,426.99 is: 279,787.23
Step by Step Solution
- Step 1: Write the proportion equation
399,768.84 : 599,967.95 = 186,426.99 : x - Step 2: Convert to fraction form
399,768.84/599,967.95 = 186,426.99/x - Step 3: Cross multiply
399,768.84x = 599,967.95 × 186,426.99 - Step 4: Simplify right side
399,768.84x = 111,850,218,082.84 - Step 5: Solve for x
x = 111,850,218,082.84/399,768.84 - Step 6: Final answer
x = 279,787.23
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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.