Finding the Fourth Proportional to 328,669.05, 493,058.07 and 115,381.60
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Solution
The fourth proportional to 328,669.05, 493,058.07 and 115,381.60 is: 173,091.53
Step by Step Solution
- Step 1: Write the proportion equation
328,669.05 : 493,058.07 = 115,381.60 : x - Step 2: Convert to fraction form
328,669.05/493,058.07 = 115,381.60/x - Step 3: Cross multiply
328,669.05x = 493,058.07 × 115,381.60 - Step 4: Simplify right side
328,669.05x = 56,889,829,009.51 - Step 5: Solve for x
x = 56,889,829,009.51/328,669.05 - Step 6: Final answer
x = 173,091.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.