Finding the Fourth Proportional to 381,816.64, 526,475.16 and 243,814.12
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Solution
The fourth proportional to 381,816.64, 526,475.16 and 243,814.12 is: 336,187.75
Step by Step Solution
- Step 1: Write the proportion equation
381,816.64 : 526,475.16 = 243,814.12 : x - Step 2: Convert to fraction form
381,816.64/526,475.16 = 243,814.12/x - Step 3: Cross multiply
381,816.64x = 526,475.16 × 243,814.12 - Step 4: Simplify right side
381,816.64x = 128,362,077,837.26 - Step 5: Solve for x
x = 128,362,077,837.26/381,816.64 - Step 6: Final answer
x = 336,187.75
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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.