Finding the Fourth Proportional to 221,656.24, 305,893.16 and 131,089.84
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Solution
The fourth proportional to 221,656.24, 305,893.16 and 131,089.84 is: 180,908.44
Step by Step Solution
- Step 1: Write the proportion equation
221,656.24 : 305,893.16 = 131,089.84 : x - Step 2: Convert to fraction form
221,656.24/305,893.16 = 131,089.84/x - Step 3: Cross multiply
221,656.24x = 305,893.16 × 131,089.84 - Step 4: Simplify right side
221,656.24x = 40,099,483,981.31 - Step 5: Solve for x
x = 40,099,483,981.31/221,656.24 - Step 6: Final answer
x = 180,908.44
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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.