Finding the Fourth Proportional to 278,437.42, 384,243.84 and 151,112.98
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Solution
The fourth proportional to 278,437.42, 384,243.84 and 151,112.98 is: 208,536.02
Step by Step Solution
- Step 1: Write the proportion equation
278,437.42 : 384,243.84 = 151,112.98 : x - Step 2: Convert to fraction form
278,437.42/384,243.84 = 151,112.98/x - Step 3: Cross multiply
278,437.42x = 384,243.84 × 151,112.98 - Step 4: Simplify right side
278,437.42x = 58,064,231,709.04 - Step 5: Solve for x
x = 58,064,231,709.04/278,437.42 - Step 6: Final answer
x = 208,536.02
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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.