Finding the Fourth Proportional to 155,314.99, 232,630.99 and 128,355.43
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Solution
The fourth proportional to 155,314.99, 232,630.99 and 128,355.43 is: 192,250.93
Step by Step Solution
- Step 1: Write the proportion equation
155,314.99 : 232,630.99 = 128,355.43 : x - Step 2: Convert to fraction form
155,314.99/232,630.99 = 128,355.43/x - Step 3: Cross multiply
155,314.99x = 232,630.99 × 128,355.43 - Step 4: Simplify right side
155,314.99x = 29,859,451,204.01 - Step 5: Solve for x
x = 29,859,451,204.01/155,314.99 - Step 6: Final answer
x = 192,250.93
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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.