Finding the Fourth Proportional to 396,291.74, 594,313.16 and 129,989.88
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Solution
The fourth proportional to 396,291.74, 594,313.16 and 129,989.88 is: 194,944.00
Step by Step Solution
- Step 1: Write the proportion equation
396,291.74 : 594,313.16 = 129,989.88 : x - Step 2: Convert to fraction form
396,291.74/594,313.16 = 129,989.88/x - Step 3: Cross multiply
396,291.74x = 594,313.16 × 129,989.88 - Step 4: Simplify right side
396,291.74x = 77,254,695,700.87 - Step 5: Solve for x
x = 77,254,695,700.87/396,291.74 - Step 6: Final answer
x = 194,944.00
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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.