Finding the Fourth Proportional to 408,655.71, 563,936.09 and 236,580.96
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Solution
The fourth proportional to 408,655.71, 563,936.09 and 236,580.96 is: 326,476.63
Step by Step Solution
- Step 1: Write the proportion equation
408,655.71 : 563,936.09 = 236,580.96 : x - Step 2: Convert to fraction form
408,655.71/563,936.09 = 236,580.96/x - Step 3: Cross multiply
408,655.71x = 563,936.09 × 236,580.96 - Step 4: Simplify right side
408,655.71x = 133,416,540,039.77 - Step 5: Solve for x
x = 133,416,540,039.77/408,655.71 - Step 6: Final answer
x = 326,476.63
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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.