Finding the Fourth Proportional to 221,101.23, 305,231.86 and 130,484.71
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Solution
The fourth proportional to 221,101.23, 305,231.86 and 130,484.71 is: 180,135.09
Step by Step Solution
- Step 1: Write the proportion equation
221,101.23 : 305,231.86 = 130,484.71 : x - Step 2: Convert to fraction form
221,101.23/305,231.86 = 130,484.71/x - Step 3: Cross multiply
221,101.23x = 305,231.86 × 130,484.71 - Step 4: Simplify right side
221,101.23x = 39,828,090,734.86 - Step 5: Solve for x
x = 39,828,090,734.86/221,101.23 - Step 6: Final answer
x = 180,135.09
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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.