Finding the Fourth Proportional to 217,079.34, 299,572.47 and 121,585.26
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Solution
The fourth proportional to 217,079.34, 299,572.47 and 121,585.26 is: 167,789.33
Step by Step Solution
- Step 1: Write the proportion equation
217,079.34 : 299,572.47 = 121,585.26 : x - Step 2: Convert to fraction form
217,079.34/299,572.47 = 121,585.26/x - Step 3: Cross multiply
217,079.34x = 299,572.47 × 121,585.26 - Step 4: Simplify right side
217,079.34x = 36,423,596,653.79 - Step 5: Solve for x
x = 36,423,596,653.79/217,079.34 - Step 6: Final answer
x = 167,789.33
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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.