Finding the Fourth Proportional to 216,865.94, 299,276.52 and 121,381.52
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Solution
The fourth proportional to 216,865.94, 299,276.52 and 121,381.52 is: 167,507.35
Step by Step Solution
- Step 1: Write the proportion equation
216,865.94 : 299,276.52 = 121,381.52 : x - Step 2: Convert to fraction form
216,865.94/299,276.52 = 121,381.52/x - Step 3: Cross multiply
216,865.94x = 299,276.52 × 121,381.52 - Step 4: Simplify right side
216,865.94x = 36,326,638,897.91 - Step 5: Solve for x
x = 36,326,638,897.91/216,865.94 - Step 6: Final answer
x = 167,507.35
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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.