Finding the Fourth Proportional to 252,495.84, 378,678.54 and 74,962.68
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Solution
The fourth proportional to 252,495.84, 378,678.54 and 74,962.68 is: 112,424.66
Step by Step Solution
- Step 1: Write the proportion equation
252,495.84 : 378,678.54 = 74,962.68 : x - Step 2: Convert to fraction form
252,495.84/378,678.54 = 74,962.68/x - Step 3: Cross multiply
252,495.84x = 378,678.54 × 74,962.68 - Step 4: Simplify right side
252,495.84x = 28,386,758,216.89 - Step 5: Solve for x
x = 28,386,758,216.89/252,495.84 - Step 6: Final answer
x = 112,424.66
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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.