Finding the Fourth Proportional to 197,400.63, 272,412.09 and 106,756.71
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Solution
The fourth proportional to 197,400.63, 272,412.09 and 106,756.71 is: 147,323.84
Step by Step Solution
- Step 1: Write the proportion equation
197,400.63 : 272,412.09 = 106,756.71 : x - Step 2: Convert to fraction form
197,400.63/272,412.09 = 106,756.71/x - Step 3: Cross multiply
197,400.63x = 272,412.09 × 106,756.71 - Step 4: Simplify right side
197,400.63x = 29,081,818,492.62 - Step 5: Solve for x
x = 29,081,818,492.62/197,400.63 - Step 6: Final answer
x = 147,323.84
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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.