Finding the Fourth Proportional to 221,254.74, 305,355.06 and 135,264.06
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Solution
The fourth proportional to 221,254.74, 305,355.06 and 135,264.06 is: 186,678.78
Step by Step Solution
- Step 1: Write the proportion equation
221,254.74 : 305,355.06 = 135,264.06 : x - Step 2: Convert to fraction form
221,254.74/305,355.06 = 135,264.06/x - Step 3: Cross multiply
221,254.74x = 305,355.06 × 135,264.06 - Step 4: Simplify right side
221,254.74x = 41,303,565,157.14 - Step 5: Solve for x
x = 41,303,565,157.14/221,254.74 - Step 6: Final answer
x = 186,678.78
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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.