Finding the Fourth Proportional to 343,643.18, 474,230.12 and 190,681.97
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Solution
The fourth proportional to 343,643.18, 474,230.12 and 190,681.97 is: 263,142.52
Step by Step Solution
- Step 1: Write the proportion equation
343,643.18 : 474,230.12 = 190,681.97 : x - Step 2: Convert to fraction form
343,643.18/474,230.12 = 190,681.97/x - Step 3: Cross multiply
343,643.18x = 474,230.12 × 190,681.97 - Step 4: Simplify right side
343,643.18x = 90,427,130,190.38 - Step 5: Solve for x
x = 90,427,130,190.38/343,643.18 - Step 6: Final answer
x = 263,142.52
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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.