Finding the Fourth Proportional to 432,541.56, 647,942.38 and 215,746.68
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Solution
The fourth proportional to 432,541.56, 647,942.38 and 215,746.68 is: 323,186.09
Step by Step Solution
- Step 1: Write the proportion equation
432,541.56 : 647,942.38 = 215,746.68 : x - Step 2: Convert to fraction form
432,541.56/647,942.38 = 215,746.68/x - Step 3: Cross multiply
432,541.56x = 647,942.38 × 215,746.68 - Step 4: Simplify right side
432,541.56x = 139,791,417,316.30 - Step 5: Solve for x
x = 139,791,417,316.30/432,541.56 - Step 6: Final answer
x = 323,186.09
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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.