Finding the Fourth Proportional to 374,813.13, 517,242.75 and 221,974.62
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Solution
The fourth proportional to 374,813.13, 517,242.75 and 221,974.62 is: 306,325.35
Step by Step Solution
- Step 1: Write the proportion equation
374,813.13 : 517,242.75 = 221,974.62 : x - Step 2: Convert to fraction form
374,813.13/517,242.75 = 221,974.62/x - Step 3: Cross multiply
374,813.13x = 517,242.75 × 221,974.62 - Step 4: Simplify right side
374,813.13x = 114,814,762,879.01 - Step 5: Solve for x
x = 114,814,762,879.01/374,813.13 - Step 6: Final answer
x = 306,325.35
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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.