Finding the Fourth Proportional to 420,345.92, 630,676.62 and 251,986.21
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Solution
The fourth proportional to 420,345.92, 630,676.62 and 251,986.21 is: 378,073.88
Step by Step Solution
- Step 1: Write the proportion equation
420,345.92 : 630,676.62 = 251,986.21 : x - Step 2: Convert to fraction form
420,345.92/630,676.62 = 251,986.21/x - Step 3: Cross multiply
420,345.92x = 630,676.62 × 251,986.21 - Step 4: Simplify right side
420,345.92x = 158,921,811,209.41 - Step 5: Solve for x
x = 158,921,811,209.41/420,345.92 - Step 6: Final answer
x = 378,073.88
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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.