Finding the Fourth Proportional to 228,598.74, 315,455.31 and 126,617.31
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Solution
The fourth proportional to 228,598.74, 315,455.31 and 126,617.31 is: 174,725.82
Step by Step Solution
- Step 1: Write the proportion equation
228,598.74 : 315,455.31 = 126,617.31 : x - Step 2: Convert to fraction form
228,598.74/315,455.31 = 126,617.31/x - Step 3: Cross multiply
228,598.74x = 315,455.31 × 126,617.31 - Step 4: Simplify right side
228,598.74x = 39,942,102,777.42 - Step 5: Solve for x
x = 39,942,102,777.42/228,598.74 - Step 6: Final answer
x = 174,725.82
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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.