Finding the Fourth Proportional to 403,240.85, 556,467.99 and 221,948.90
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Solution
The fourth proportional to 403,240.85, 556,467.99 and 221,948.90 is: 306,287.07
Step by Step Solution
- Step 1: Write the proportion equation
403,240.85 : 556,467.99 = 221,948.90 : x - Step 2: Convert to fraction form
403,240.85/556,467.99 = 221,948.90/x - Step 3: Cross multiply
403,240.85x = 556,467.99 × 221,948.90 - Step 4: Simplify right side
403,240.85x = 123,507,458,265.71 - Step 5: Solve for x
x = 123,507,458,265.71/403,240.85 - Step 6: Final answer
x = 306,287.07
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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.