Finding the Fourth Proportional to 221,637.94, 305,860.35 and 121,035.94
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Solution
The fourth proportional to 221,637.94, 305,860.35 and 121,035.94 is: 167,029.59
Step by Step Solution
- Step 1: Write the proportion equation
221,637.94 : 305,860.35 = 121,035.94 : x - Step 2: Convert to fraction form
221,637.94/305,860.35 = 121,035.94/x - Step 3: Cross multiply
221,637.94x = 305,860.35 × 121,035.94 - Step 4: Simplify right side
221,637.94x = 37,020,094,660.21 - Step 5: Solve for x
x = 37,020,094,660.21/221,637.94 - Step 6: Final answer
x = 167,029.59
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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.