Finding the Fourth Proportional to 690, 1,035.14 and 202.99
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Solution
The fourth proportional to 690, 1,035.14 and 202.99 is: 304.53
Step by Step Solution
- Step 1: Write the proportion equation
690 : 1,035.14 = 202.99 : x - Step 2: Convert to fraction form
690/1,035.14 = 202.99/x - Step 3: Cross multiply
690x = 1,035.14 × 202.99 - Step 4: Simplify right side
690x = 210,123.07 - Step 5: Solve for x
x = 210,123.07/690 - Step 6: Final answer
x = 304.53
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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.