Finding the Fourth Proportional to 312,095.16, 430,691.18 and 176,157.63
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Solution
The fourth proportional to 312,095.16, 430,691.18 and 176,157.63 is: 243,097.45
Step by Step Solution
- Step 1: Write the proportion equation
312,095.16 : 430,691.18 = 176,157.63 : x - Step 2: Convert to fraction form
312,095.16/430,691.18 = 176,157.63/x - Step 3: Cross multiply
312,095.16x = 430,691.18 × 176,157.63 - Step 4: Simplify right side
312,095.16x = 75,869,536,649.92 - Step 5: Solve for x
x = 75,869,536,649.92/312,095.16 - Step 6: Final answer
x = 243,097.45
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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.