Finding the Fourth Proportional to 221,488.14, 305,637.77 and 124,686.99
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Solution
The fourth proportional to 221,488.14, 305,637.77 and 124,686.99 is: 172,059.11
Step by Step Solution
- Step 1: Write the proportion equation
221,488.14 : 305,637.77 = 124,686.99 : x - Step 2: Convert to fraction form
221,488.14/305,637.77 = 124,686.99/x - Step 3: Cross multiply
221,488.14x = 305,637.77 × 124,686.99 - Step 4: Simplify right side
221,488.14x = 38,109,052,948.18 - Step 5: Solve for x
x = 38,109,052,948.18/221,488.14 - Step 6: Final answer
x = 172,059.11
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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.