Finding the Fourth Proportional to 396,276.20, 594,393.40 and 130,001.68
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Solution
The fourth proportional to 396,276.20, 594,393.40 and 130,001.68 is: 194,995.66
Step by Step Solution
- Step 1: Write the proportion equation
396,276.20 : 594,393.40 = 130,001.68 : x - Step 2: Convert to fraction form
396,276.20/594,393.40 = 130,001.68/x - Step 3: Cross multiply
396,276.20x = 594,393.40 × 130,001.68 - Step 4: Simplify right side
396,276.20x = 77,272,140,580.91 - Step 5: Solve for x
x = 77,272,140,580.91/396,276.20 - Step 6: Final answer
x = 194,995.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.