Finding the Fourth Proportional to 221,165.57, 305,177.63 and 124,355.99
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Solution
The fourth proportional to 221,165.57, 305,177.63 and 124,355.99 is: 171,593.91
Step by Step Solution
- Step 1: Write the proportion equation
221,165.57 : 305,177.63 = 124,355.99 : x - Step 2: Convert to fraction form
221,165.57/305,177.63 = 124,355.99/x - Step 3: Cross multiply
221,165.57x = 305,177.63 × 124,355.99 - Step 4: Simplify right side
221,165.57x = 37,950,666,445.67 - Step 5: Solve for x
x = 37,950,666,445.67/221,165.57 - Step 6: Final answer
x = 171,593.91
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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.