Finding the Fourth Proportional to 257.99, 356.06 and 159.79
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Solution
The fourth proportional to 257.99, 356.06 and 159.79 is: 220.54
Step by Step Solution
- Step 1: Write the proportion equation
257.99 : 356.06 = 159.79 : x - Step 2: Convert to fraction form
257.99/356.06 = 159.79/x - Step 3: Cross multiply
257.99x = 356.06 × 159.79 - Step 4: Simplify right side
257.99x = 56,895.00 - Step 5: Solve for x
x = 56,895.00/257.99 - Step 6: Final answer
x = 220.54
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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.