Finding the Fourth Proportional to 221,564.34, 305,741.52 and 130,903.11
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Solution
The fourth proportional to 221,564.34, 305,741.52 and 130,903.11 is: 180,636.09
Step by Step Solution
- Step 1: Write the proportion equation
221,564.34 : 305,741.52 = 130,903.11 : x - Step 2: Convert to fraction form
221,564.34/305,741.52 = 130,903.11/x - Step 3: Cross multiply
221,564.34x = 305,741.52 × 130,903.11 - Step 4: Simplify right side
221,564.34x = 40,022,515,824.13 - Step 5: Solve for x
x = 40,022,515,824.13/221,564.34 - Step 6: Final answer
x = 180,636.09
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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.