Finding the Fourth Proportional to 403,009.93, 556,153.73 and 221,717.98
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Solution
The fourth proportional to 403,009.93, 556,153.73 and 221,717.98 is: 305,970.82
Step by Step Solution
- Step 1: Write the proportion equation
403,009.93 : 556,153.73 = 221,717.98 : x - Step 2: Convert to fraction form
403,009.93/556,153.73 = 221,717.98/x - Step 3: Cross multiply
403,009.93x = 556,153.73 × 221,717.98 - Step 4: Simplify right side
403,009.93x = 123,309,280,476.48 - Step 5: Solve for x
x = 123,309,280,476.48/403,009.93 - Step 6: Final answer
x = 305,970.82
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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.