Finding the Fourth Proportional to 403,132.08, 556,308.31 and 221,827.05
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Solution
The fourth proportional to 403,132.08, 556,308.31 and 221,827.05 is: 306,113.65
Step by Step Solution
- Step 1: Write the proportion equation
403,132.08 : 556,308.31 = 221,827.05 : x - Step 2: Convert to fraction form
403,132.08/556,308.31 = 221,827.05/x - Step 3: Cross multiply
403,132.08x = 556,308.31 × 221,827.05 - Step 4: Simplify right side
403,132.08x = 123,404,231,297.79 - Step 5: Solve for x
x = 123,404,231,297.79/403,132.08 - Step 6: Final answer
x = 306,113.65
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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.