Finding the Fourth Proportional to 658,128.53, 987,192.80 and 159,492.53
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Solution
The fourth proportional to 658,128.53, 987,192.80 and 159,492.53 is: 239,238.80
Step by Step Solution
- Step 1: Write the proportion equation
658,128.53 : 987,192.80 = 159,492.53 : x - Step 2: Convert to fraction form
658,128.53/987,192.80 = 159,492.53/x - Step 3: Cross multiply
658,128.53x = 987,192.80 × 159,492.53 - Step 4: Simplify right side
658,128.53x = 157,449,877,269.78 - Step 5: Solve for x
x = 157,449,877,269.78/658,128.53 - Step 6: Final answer
x = 239,238.80
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1.5x scale
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.