Finding the Fourth Proportional to 312,293.68, 430,965.52 and 169,053.28
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Solution
The fourth proportional to 312,293.68, 430,965.52 and 169,053.28 is: 233,293.66
Step by Step Solution
- Step 1: Write the proportion equation
312,293.68 : 430,965.52 = 169,053.28 : x - Step 2: Convert to fraction form
312,293.68/430,965.52 = 169,053.28/x - Step 3: Cross multiply
312,293.68x = 430,965.52 × 169,053.28 - Step 4: Simplify right side
312,293.68x = 72,856,134,722.91 - Step 5: Solve for x
x = 72,856,134,722.91/312,293.68 - Step 6: Final answer
x = 233,293.66
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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.