Finding the Fourth Proportional to 313.55, 432.54 and 202.99
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Solution
The fourth proportional to 313.55, 432.54 and 202.99 is: 280.02
Step by Step Solution
- Step 1: Write the proportion equation
313.55 : 432.54 = 202.99 : x - Step 2: Convert to fraction form
313.55/432.54 = 202.99/x - Step 3: Cross multiply
313.55x = 432.54 × 202.99 - Step 4: Simplify right side
313.55x = 87,800.21 - Step 5: Solve for x
x = 87,800.21/313.55 - Step 6: Final answer
x = 280.02
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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.