Finding the Fourth Proportional to 292,512.80, 438,769.20 and 272,829.80
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Solution
The fourth proportional to 292,512.80, 438,769.20 and 272,829.80 is: 409,244.70
Step by Step Solution
- Step 1: Write the proportion equation
292,512.80 : 438,769.20 = 272,829.80 : x - Step 2: Convert to fraction form
292,512.80/438,769.20 = 272,829.80/x - Step 3: Cross multiply
292,512.80x = 438,769.20 × 272,829.80 - Step 4: Simplify right side
292,512.80x = 119,709,313,082.16 - Step 5: Solve for x
x = 119,709,313,082.16/292,512.80 - Step 6: Final answer
x = 409,244.70
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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.