Finding the Fourth Proportional to 149,402.80, 209,688.80 and 149,402.80
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Solution
The fourth proportional to 149,402.80, 209,688.80 and 149,402.80 is: 209,688.80
Step by Step Solution
- Step 1: Write the proportion equation
149,402.80 : 209,688.80 = 149,402.80 : x - Step 2: Convert to fraction form
149,402.80/209,688.80 = 149,402.80/x - Step 3: Cross multiply
149,402.80x = 209,688.80 × 149,402.80 - Step 4: Simplify right side
149,402.80x = 31,328,093,848.64 - Step 5: Solve for x
x = 31,328,093,848.64/149,402.80 - Step 6: Final answer
x = 209,688.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.