Finding the Fourth Proportional to 898.87, 1,348 and 351.21
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Solution
The fourth proportional to 898.87, 1,348 and 351.21 is: 526.70
Step by Step Solution
- Step 1: Write the proportion equation
898.87 : 1,348 = 351.21 : x - Step 2: Convert to fraction form
898.87/1,348 = 351.21/x - Step 3: Cross multiply
898.87x = 1,348 × 351.21 - Step 4: Simplify right side
898.87x = 473,431.08 - Step 5: Solve for x
x = 473,431.08/898.87 - Step 6: Final answer
x = 526.70
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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.