Finding the Fourth Proportional to 292,319.20, 438,409.68 and 126,016.48
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Solution
The fourth proportional to 292,319.20, 438,409.68 and 126,016.48 is: 188,994.92
Step by Step Solution
- Step 1: Write the proportion equation
292,319.20 : 438,409.68 = 126,016.48 : x - Step 2: Convert to fraction form
292,319.20/438,409.68 = 126,016.48/x - Step 3: Cross multiply
292,319.20x = 438,409.68 × 126,016.48 - Step 4: Simplify right side
292,319.20x = 55,246,844,671.53 - Step 5: Solve for x
x = 55,246,844,671.53/292,319.20 - Step 6: Final answer
x = 188,994.92
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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.