Finding the Fourth Proportional to 207,894.11, 286,903.60 and 117,248.15
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Solution
The fourth proportional to 207,894.11, 286,903.60 and 117,248.15 is: 161,807.94
Step by Step Solution
- Step 1: Write the proportion equation
207,894.11 : 286,903.60 = 117,248.15 : x - Step 2: Convert to fraction form
207,894.11/286,903.60 = 117,248.15/x - Step 3: Cross multiply
207,894.11x = 286,903.60 × 117,248.15 - Step 4: Simplify right side
207,894.11x = 33,638,916,752.48 - Step 5: Solve for x
x = 33,638,916,752.48/207,894.11 - Step 6: Final answer
x = 161,807.94
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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.