Finding the Fourth Proportional to 318,208.73, 477,445.27 and 128,802.99
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Solution
The fourth proportional to 318,208.73, 477,445.27 and 128,802.99 is: 193,257.99
Step by Step Solution
- Step 1: Write the proportion equation
318,208.73 : 477,445.27 = 128,802.99 : x - Step 2: Convert to fraction form
318,208.73/477,445.27 = 128,802.99/x - Step 3: Cross multiply
318,208.73x = 477,445.27 × 128,802.99 - Step 4: Simplify right side
318,208.73x = 61,496,378,337.36 - Step 5: Solve for x
x = 61,496,378,337.36/318,208.73 - Step 6: Final answer
x = 193,257.99
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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.