Finding the Fourth Proportional to 219,044.05, 302,175.36 and 128,343.69
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Solution
The fourth proportional to 219,044.05, 302,175.36 and 128,343.69 is: 177,052.52
Step by Step Solution
- Step 1: Write the proportion equation
219,044.05 : 302,175.36 = 128,343.69 : x - Step 2: Convert to fraction form
219,044.05/302,175.36 = 128,343.69/x - Step 3: Cross multiply
219,044.05x = 302,175.36 × 128,343.69 - Step 4: Simplify right side
219,044.05x = 38,782,300,729.48 - Step 5: Solve for x
x = 38,782,300,729.48/219,044.05 - Step 6: Final answer
x = 177,052.52
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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.