Finding the Fourth Proportional to 190,368.47, 285,490.42 and 89,135.19
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Solution
The fourth proportional to 190,368.47, 285,490.42 and 89,135.19 is: 133,673.62
Step by Step Solution
- Step 1: Write the proportion equation
190,368.47 : 285,490.42 = 89,135.19 : x - Step 2: Convert to fraction form
190,368.47/285,490.42 = 89,135.19/x - Step 3: Cross multiply
190,368.47x = 285,490.42 × 89,135.19 - Step 4: Simplify right side
190,368.47x = 25,447,242,607.04 - Step 5: Solve for x
x = 25,447,242,607.04/190,368.47 - Step 6: Final answer
x = 133,673.62
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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.