Finding the Fourth Proportional to 305.08, 457.70 and 88.66
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Solution
The fourth proportional to 305.08, 457.70 and 88.66 is: 133.01
Step by Step Solution
- Step 1: Write the proportion equation
305.08 : 457.70 = 88.66 : x - Step 2: Convert to fraction form
305.08/457.70 = 88.66/x - Step 3: Cross multiply
305.08x = 457.70 × 88.66 - Step 4: Simplify right side
305.08x = 40,579.24 - Step 5: Solve for x
x = 40,579.24/305.08 - Step 6: Final answer
x = 133.01
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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.