Finding the Fourth Proportional to 221,868.36, 305,533.35 and 192,784.50
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Solution
The fourth proportional to 221,868.36, 305,533.35 and 192,784.50 is: 265,482.17
Step by Step Solution
- Step 1: Write the proportion equation
221,868.36 : 305,533.35 = 192,784.50 : x - Step 2: Convert to fraction form
221,868.36/305,533.35 = 192,784.50/x - Step 3: Cross multiply
221,868.36x = 305,533.35 × 192,784.50 - Step 4: Simplify right side
221,868.36x = 58,902,094,113.08 - Step 5: Solve for x
x = 58,902,094,113.08/221,868.36 - Step 6: Final answer
x = 265,482.17
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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.