Finding the Fourth Proportional to 378,306.24, 567,547.68 and 128,988.48
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Solution
The fourth proportional to 378,306.24, 567,547.68 and 128,988.48 is: 193,512.83
Step by Step Solution
- Step 1: Write the proportion equation
378,306.24 : 567,547.68 = 128,988.48 : x - Step 2: Convert to fraction form
378,306.24/567,547.68 = 128,988.48/x - Step 3: Cross multiply
378,306.24x = 567,547.68 × 128,988.48 - Step 4: Simplify right side
378,306.24x = 73,207,112,570.73 - Step 5: Solve for x
x = 73,207,112,570.73/378,306.24 - Step 6: Final answer
x = 193,512.83
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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.