Finding the Fourth Proportional to 649.17, 972.19 and 356.23
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Solution
The fourth proportional to 649.17, 972.19 and 356.23 is: 533.49
Step by Step Solution
- Step 1: Write the proportion equation
649.17 : 972.19 = 356.23 : x - Step 2: Convert to fraction form
649.17/972.19 = 356.23/x - Step 3: Cross multiply
649.17x = 972.19 × 356.23 - Step 4: Simplify right side
649.17x = 346,323.24 - Step 5: Solve for x
x = 346,323.24/649.17 - Step 6: Final answer
x = 533.49
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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.