Finding the Fourth Proportional to 438,421.30, 657,267.45 and 185,895.70
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Solution
The fourth proportional to 438,421.30, 657,267.45 and 185,895.70 is: 278,689.00
Step by Step Solution
- Step 1: Write the proportion equation
438,421.30 : 657,267.45 = 185,895.70 : x - Step 2: Convert to fraction form
438,421.30/657,267.45 = 185,895.70/x - Step 3: Cross multiply
438,421.30x = 657,267.45 × 185,895.70 - Step 4: Simplify right side
438,421.30x = 122,183,192,704.97 - Step 5: Solve for x
x = 122,183,192,704.97/438,421.30 - Step 6: Final answer
x = 278,689.00
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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.