Finding the Fourth Proportional to 386,547.75, 580,214.75 and 266,613.03
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Solution
The fourth proportional to 386,547.75, 580,214.75 and 266,613.03 is: 400,190.69
Step by Step Solution
- Step 1: Write the proportion equation
386,547.75 : 580,214.75 = 266,613.03 : x - Step 2: Convert to fraction form
386,547.75/580,214.75 = 266,613.03/x - Step 3: Cross multiply
386,547.75x = 580,214.75 × 266,613.03 - Step 4: Simplify right side
386,547.75x = 154,692,811,215.13 - Step 5: Solve for x
x = 154,692,811,215.13/386,547.75 - Step 6: Final answer
x = 400,190.69
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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.