Finding the Fourth Proportional to 221,208.80, 305,259.36 and 130,593.96
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Solution
The fourth proportional to 221,208.80, 305,259.36 and 130,593.96 is: 180,214.48
Step by Step Solution
- Step 1: Write the proportion equation
221,208.80 : 305,259.36 = 130,593.96 : x - Step 2: Convert to fraction form
221,208.80/305,259.36 = 130,593.96/x - Step 3: Cross multiply
221,208.80x = 305,259.36 × 130,593.96 - Step 4: Simplify right side
221,208.80x = 39,865,028,649.47 - Step 5: Solve for x
x = 39,865,028,649.47/221,208.80 - Step 6: Final answer
x = 180,214.48
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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.