Finding the Fourth Proportional to 235,817.01, 325,426.98 and 128,386.10
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Solution
The fourth proportional to 235,817.01, 325,426.98 and 128,386.10 is: 177,172.55
Step by Step Solution
- Step 1: Write the proportion equation
235,817.01 : 325,426.98 = 128,386.10 : x - Step 2: Convert to fraction form
235,817.01/325,426.98 = 128,386.10/x - Step 3: Cross multiply
235,817.01x = 325,426.98 × 128,386.10 - Step 4: Simplify right side
235,817.01x = 41,780,300,796.98 - Step 5: Solve for x
x = 41,780,300,796.98/235,817.01 - Step 6: Final answer
x = 177,172.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.