Finding the Fourth Proportional to 420,365.62, 630,431.68 and 116,689.97
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Solution
The fourth proportional to 420,365.62, 630,431.68 and 116,689.97 is: 175,002.54
Step by Step Solution
- Step 1: Write the proportion equation
420,365.62 : 630,431.68 = 116,689.97 : x - Step 2: Convert to fraction form
420,365.62/630,431.68 = 116,689.97/x - Step 3: Cross multiply
420,365.62x = 630,431.68 × 116,689.97 - Step 4: Simplify right side
420,365.62x = 73,565,052,111.41 - Step 5: Solve for x
x = 73,565,052,111.41/420,365.62 - Step 6: Final answer
x = 175,002.54
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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.