Finding the Fourth Proportional to 401,272.76, 553,665.36 and 272,228.78
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Solution
The fourth proportional to 401,272.76, 553,665.36 and 272,228.78 is: 375,613.95
Step by Step Solution
- Step 1: Write the proportion equation
401,272.76 : 553,665.36 = 272,228.78 : x - Step 2: Convert to fraction form
401,272.76/553,665.36 = 272,228.78/x - Step 3: Cross multiply
401,272.76x = 553,665.36 × 272,228.78 - Step 4: Simplify right side
401,272.76x = 150,723,645,481.06 - Step 5: Solve for x
x = 150,723,645,481.06/401,272.76 - Step 6: Final answer
x = 375,613.95
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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.