Finding the Fourth Proportional to 149,455.20, 209,392.80 and 149,455.20
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Solution
The fourth proportional to 149,455.20, 209,392.80 and 149,455.20 is: 209,392.80
Step by Step Solution
- Step 1: Write the proportion equation
149,455.20 : 209,392.80 = 149,455.20 : x - Step 2: Convert to fraction form
149,455.20/209,392.80 = 149,455.20/x - Step 3: Cross multiply
149,455.20x = 209,392.80 × 149,455.20 - Step 4: Simplify right side
149,455.20x = 31,294,842,802.56 - Step 5: Solve for x
x = 31,294,842,802.56/149,455.20 - Step 6: Final answer
x = 209,392.80
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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.