Finding the Fourth Proportional to 221,718.97, 305,947.41 and 124,927.21
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Solution
The fourth proportional to 221,718.97, 305,947.41 and 124,927.21 is: 172,385.59
Step by Step Solution
- Step 1: Write the proportion equation
221,718.97 : 305,947.41 = 124,927.21 : x - Step 2: Convert to fraction form
221,718.97/305,947.41 = 124,927.21/x - Step 3: Cross multiply
221,718.97x = 305,947.41 × 124,927.21 - Step 4: Simplify right side
221,718.97x = 38,221,154,808.29 - Step 5: Solve for x
x = 38,221,154,808.29/221,718.97 - Step 6: Final answer
x = 172,385.59
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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.