Finding the Fourth Proportional to 212,207.13, 292,854.20 and 116,722.71
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Solution
The fourth proportional to 212,207.13, 292,854.20 and 116,722.71 is: 161,081.94
Step by Step Solution
- Step 1: Write the proportion equation
212,207.13 : 292,854.20 = 116,722.71 : x - Step 2: Convert to fraction form
212,207.13/292,854.20 = 116,722.71/x - Step 3: Cross multiply
212,207.13x = 292,854.20 × 116,722.71 - Step 4: Simplify right side
212,207.13x = 34,182,735,275.27 - Step 5: Solve for x
x = 34,182,735,275.27/212,207.13 - Step 6: Final answer
x = 161,081.94
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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.