Finding the Fourth Proportional to 378,953.15, 523,043.26 and 249,914.91
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Solution
The fourth proportional to 378,953.15, 523,043.26 and 249,914.91 is: 344,940.55
Step by Step Solution
- Step 1: Write the proportion equation
378,953.15 : 523,043.26 = 249,914.91 : x - Step 2: Convert to fraction form
378,953.15/523,043.26 = 249,914.91/x - Step 3: Cross multiply
378,953.15x = 523,043.26 × 249,914.91 - Step 4: Simplify right side
378,953.15x = 130,716,307,962.31 - Step 5: Solve for x
x = 130,716,307,962.31/378,953.15 - Step 6: Final answer
x = 344,940.55
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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.