Finding the Fourth Proportional to 581.99, 803.12 and 319.99
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Solution
The fourth proportional to 581.99, 803.12 and 319.99 is: 441.57
Step by Step Solution
- Step 1: Write the proportion equation
581.99 : 803.12 = 319.99 : x - Step 2: Convert to fraction form
581.99/803.12 = 319.99/x - Step 3: Cross multiply
581.99x = 803.12 × 319.99 - Step 4: Simplify right side
581.99x = 256,986.76 - Step 5: Solve for x
x = 256,986.76/581.99 - Step 6: Final answer
x = 441.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.