Finding the Fourth Proportional to 196,031.74, 270,424.06 and 128,088.44
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Solution
The fourth proportional to 196,031.74, 270,424.06 and 128,088.44 is: 176,696.88
Step by Step Solution
- Step 1: Write the proportion equation
196,031.74 : 270,424.06 = 128,088.44 : x - Step 2: Convert to fraction form
196,031.74/270,424.06 = 128,088.44/x - Step 3: Cross multiply
196,031.74x = 270,424.06 × 128,088.44 - Step 4: Simplify right side
196,031.74x = 34,638,195,983.87 - Step 5: Solve for x
x = 34,638,195,983.87/196,031.74 - Step 6: Final answer
x = 176,696.88
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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.