Finding the Fourth Proportional to 221,703.99, 305,860.95 and 163,699.74
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Solution
The fourth proportional to 221,703.99, 305,860.95 and 163,699.74 is: 225,838.78
Step by Step Solution
- Step 1: Write the proportion equation
221,703.99 : 305,860.95 = 163,699.74 : x - Step 2: Convert to fraction form
221,703.99/305,860.95 = 163,699.74/x - Step 3: Cross multiply
221,703.99x = 305,860.95 × 163,699.74 - Step 4: Simplify right side
221,703.99x = 50,069,357,991.15 - Step 5: Solve for x
x = 50,069,357,991.15/221,703.99 - Step 6: Final answer
x = 225,838.78
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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.