Finding the Fourth Proportional to 499.08, 688.68 and 277.99
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Solution
The fourth proportional to 499.08, 688.68 and 277.99 is: 383.59
Step by Step Solution
- Step 1: Write the proportion equation
499.08 : 688.68 = 277.99 : x - Step 2: Convert to fraction form
499.08/688.68 = 277.99/x - Step 3: Cross multiply
499.08x = 688.68 × 277.99 - Step 4: Simplify right side
499.08x = 191,444.13 - Step 5: Solve for x
x = 191,444.13/499.08 - Step 6: Final answer
x = 383.59
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.