Finding the Fourth Proportional to 403,705.34, 557,113.89 and 219,942.99
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Solution
The fourth proportional to 403,705.34, 557,113.89 and 219,942.99 is: 303,521.61
Step by Step Solution
- Step 1: Write the proportion equation
403,705.34 : 557,113.89 = 219,942.99 : x - Step 2: Convert to fraction form
403,705.34/557,113.89 = 219,942.99/x - Step 3: Cross multiply
403,705.34x = 557,113.89 × 219,942.99 - Step 4: Simplify right side
403,705.34x = 122,533,294,737.13 - Step 5: Solve for x
x = 122,533,294,737.13/403,705.34 - Step 6: Final answer
x = 303,521.61
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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.