Finding the Fourth Proportional to 217,943.30, 326,963.55 and 84,811.70
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Solution
The fourth proportional to 217,943.30, 326,963.55 and 84,811.70 is: 127,236.46
Step by Step Solution
- Step 1: Write the proportion equation
217,943.30 : 326,963.55 = 84,811.70 : x - Step 2: Convert to fraction form
217,943.30/326,963.55 = 84,811.70/x - Step 3: Cross multiply
217,943.30x = 326,963.55 × 84,811.70 - Step 4: Simplify right side
217,943.30x = 27,730,334,513.54 - Step 5: Solve for x
x = 27,730,334,513.54/217,943.30 - Step 6: Final answer
x = 127,236.46
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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.