Finding the Fourth Proportional to 486,681.40, 730,022.06 and 154,257.40
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Solution
The fourth proportional to 486,681.40, 730,022.06 and 154,257.40 is: 231,386.09
Step by Step Solution
- Step 1: Write the proportion equation
486,681.40 : 730,022.06 = 154,257.40 : x - Step 2: Convert to fraction form
486,681.40/730,022.06 = 154,257.40/x - Step 3: Cross multiply
486,681.40x = 730,022.06 × 154,257.40 - Step 4: Simplify right side
486,681.40x = 112,611,304,918.24 - Step 5: Solve for x
x = 112,611,304,918.24/486,681.40 - Step 6: Final answer
x = 231,386.09
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Similar ratio
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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.