Finding the Fourth Proportional to 290,246.40, 435,201.99 and 112,545.81
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Solution
The fourth proportional to 290,246.40, 435,201.99 and 112,545.81 is: 168,753.72
Step by Step Solution
- Step 1: Write the proportion equation
290,246.40 : 435,201.99 = 112,545.81 : x - Step 2: Convert to fraction form
290,246.40/435,201.99 = 112,545.81/x - Step 3: Cross multiply
290,246.40x = 435,201.99 × 112,545.81 - Step 4: Simplify right side
290,246.40x = 48,980,160,478.16 - Step 5: Solve for x
x = 48,980,160,478.16/290,246.40 - Step 6: Final answer
x = 168,753.72
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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.