Finding the Fourth Proportional to 208,989.84, 288,416.88 and 122,953.32
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Solution
The fourth proportional to 208,989.84, 288,416.88 and 122,953.32 is: 169,681.99
Step by Step Solution
- Step 1: Write the proportion equation
208,989.84 : 288,416.88 = 122,953.32 : x - Step 2: Convert to fraction form
208,989.84/288,416.88 = 122,953.32/x - Step 3: Cross multiply
208,989.84x = 288,416.88 × 122,953.32 - Step 4: Simplify right side
208,989.84x = 35,461,812,940.04 - Step 5: Solve for x
x = 35,461,812,940.04/208,989.84 - Step 6: Final answer
x = 169,681.99
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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.