Finding the Fourth Proportional to 403,010.18, 556,154.07 and 221,718.23
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Solution
The fourth proportional to 403,010.18, 556,154.07 and 221,718.23 is: 305,971.17
Step by Step Solution
- Step 1: Write the proportion equation
403,010.18 : 556,154.07 = 221,718.23 : x - Step 2: Convert to fraction form
403,010.18/556,154.07 = 221,718.23/x - Step 3: Cross multiply
403,010.18x = 556,154.07 × 221,718.23 - Step 4: Simplify right side
403,010.18x = 123,309,496,007.70 - Step 5: Solve for x
x = 123,309,496,007.70/403,010.18 - Step 6: Final answer
x = 305,971.17
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1.5x scale
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.