Finding the Fourth Proportional to 198,319.36, 273,663.84 and 113,419.84
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Solution
The fourth proportional to 198,319.36, 273,663.84 and 113,419.84 is: 156,509.73
Step by Step Solution
- Step 1: Write the proportion equation
198,319.36 : 273,663.84 = 113,419.84 : x - Step 2: Convert to fraction form
198,319.36/273,663.84 = 113,419.84/x - Step 3: Cross multiply
198,319.36x = 273,663.84 × 113,419.84 - Step 4: Simplify right side
198,319.36x = 31,038,908,946.59 - Step 5: Solve for x
x = 31,038,908,946.59/198,319.36 - Step 6: Final answer
x = 156,509.73
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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.