Finding the Fourth Proportional to 402,802.40, 555,881.58 and 221,528.36
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Solution
The fourth proportional to 402,802.40, 555,881.58 and 221,528.36 is: 305,716.99
Step by Step Solution
- Step 1: Write the proportion equation
402,802.40 : 555,881.58 = 221,528.36 : x - Step 2: Convert to fraction form
402,802.40/555,881.58 = 221,528.36/x - Step 3: Cross multiply
402,802.40x = 555,881.58 × 221,528.36 - Step 4: Simplify right side
402,802.40x = 123,143,536,161.31 - Step 5: Solve for x
x = 123,143,536,161.31/402,802.40 - Step 6: Final answer
x = 305,716.99
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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.