Finding the Fourth Proportional to 340.68, 511.28 and 259.68
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Solution
The fourth proportional to 340.68, 511.28 and 259.68 is: 389.72
Step by Step Solution
- Step 1: Write the proportion equation
340.68 : 511.28 = 259.68 : x - Step 2: Convert to fraction form
340.68/511.28 = 259.68/x - Step 3: Cross multiply
340.68x = 511.28 × 259.68 - Step 4: Simplify right side
340.68x = 132,769.19 - Step 5: Solve for x
x = 132,769.19/340.68 - Step 6: Final answer
x = 389.72
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.