Finding the Fourth Proportional to 211,921.71, 292,456.10 and 116,432.01
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Solution
The fourth proportional to 211,921.71, 292,456.10 and 116,432.01 is: 160,678.45
Step by Step Solution
- Step 1: Write the proportion equation
211,921.71 : 292,456.10 = 116,432.01 : x - Step 2: Convert to fraction form
211,921.71/292,456.10 = 116,432.01/x - Step 3: Cross multiply
211,921.71x = 292,456.10 × 116,432.01 - Step 4: Simplify right side
211,921.71x = 34,051,250,977.60 - Step 5: Solve for x
x = 34,051,250,977.60/211,921.71 - Step 6: Final answer
x = 160,678.45
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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.