Finding the Fourth Proportional to 307,611.34, 424,503.08 and 171,637.09
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Solution
The fourth proportional to 307,611.34, 424,503.08 and 171,637.09 is: 236,858.86
Step by Step Solution
- Step 1: Write the proportion equation
307,611.34 : 424,503.08 = 171,637.09 : x - Step 2: Convert to fraction form
307,611.34/424,503.08 = 171,637.09/x - Step 3: Cross multiply
307,611.34x = 424,503.08 × 171,637.09 - Step 4: Simplify right side
307,611.34x = 72,860,472,489.05 - Step 5: Solve for x
x = 72,860,472,489.05/307,611.34 - Step 6: Final answer
x = 236,858.86
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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.