Finding the Fourth Proportional to 203.99, 305.99 and 59.70
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Solution
The fourth proportional to 203.99, 305.99 and 59.70 is: 89.55
Step by Step Solution
- Step 1: Write the proportion equation
203.99 : 305.99 = 59.70 : x - Step 2: Convert to fraction form
203.99/305.99 = 59.70/x - Step 3: Cross multiply
203.99x = 305.99 × 59.70 - Step 4: Simplify right side
203.99x = 18,267.60 - Step 5: Solve for x
x = 18,267.60/203.99 - Step 6: Final answer
x = 89.55
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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.