Finding the Fourth Proportional to 216,062.70, 323,818.65 and 121,292.70
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Solution
The fourth proportional to 216,062.70, 323,818.65 and 121,292.70 is: 181,784.45
Step by Step Solution
- Step 1: Write the proportion equation
216,062.70 : 323,818.65 = 121,292.70 : x - Step 2: Convert to fraction form
216,062.70/323,818.65 = 121,292.70/x - Step 3: Cross multiply
216,062.70x = 323,818.65 × 121,292.70 - Step 4: Simplify right side
216,062.70x = 39,276,838,368.86 - Step 5: Solve for x
x = 39,276,838,368.86/216,062.70 - Step 6: Final answer
x = 181,784.45
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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.