Finding the Fourth Proportional to 353,446.40, 530,428.80 and 235,078.40
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Solution
The fourth proportional to 353,446.40, 530,428.80 and 235,078.40 is: 352,789.99
Step by Step Solution
- Step 1: Write the proportion equation
353,446.40 : 530,428.80 = 235,078.40 : x - Step 2: Convert to fraction form
353,446.40/530,428.80 = 235,078.40/x - Step 3: Cross multiply
353,446.40x = 530,428.80 × 235,078.40 - Step 4: Simplify right side
353,446.40x = 124,692,353,617.92 - Step 5: Solve for x
x = 124,692,353,617.92/353,446.40 - Step 6: Final answer
x = 352,789.99
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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.