Finding the Fourth Proportional to 217,160.41, 299,689.60 and 121,663.84
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Solution
The fourth proportional to 217,160.41, 299,689.60 and 121,663.84 is: 167,900.71
Step by Step Solution
- Step 1: Write the proportion equation
217,160.41 : 299,689.60 = 121,663.84 : x - Step 2: Convert to fraction form
217,160.41/299,689.60 = 121,663.84/x - Step 3: Cross multiply
217,160.41x = 299,689.60 × 121,663.84 - Step 4: Simplify right side
217,160.41x = 36,461,387,544.06 - Step 5: Solve for x
x = 36,461,387,544.06/217,160.41 - Step 6: Final answer
x = 167,900.71
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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.