Finding the Fourth Proportional to 292,390.20, 438,366.60 and 159,420.60
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Solution
The fourth proportional to 292,390.20, 438,366.60 and 159,420.60 is: 239,011.66
Step by Step Solution
- Step 1: Write the proportion equation
292,390.20 : 438,366.60 = 159,420.60 : x - Step 2: Convert to fraction form
292,390.20/438,366.60 = 159,420.60/x - Step 3: Cross multiply
292,390.20x = 438,366.60 × 159,420.60 - Step 4: Simplify right side
292,390.20x = 69,884,666,391.96 - Step 5: Solve for x
x = 69,884,666,391.96/292,390.20 - Step 6: Final answer
x = 239,011.66
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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.