Finding the Fourth Proportional to 280,509.03, 387,102.09 and 165,828.99
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Solution
The fourth proportional to 280,509.03, 387,102.09 and 165,828.99 is: 228,843.79
Step by Step Solution
- Step 1: Write the proportion equation
280,509.03 : 387,102.09 = 165,828.99 : x - Step 2: Convert to fraction form
280,509.03/387,102.09 = 165,828.99/x - Step 3: Cross multiply
280,509.03x = 387,102.09 × 165,828.99 - Step 4: Simplify right side
280,509.03x = 64,192,748,611.59 - Step 5: Solve for x
x = 64,192,748,611.59/280,509.03 - Step 6: Final answer
x = 228,843.79
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1.5x scale
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.