Finding the Fourth Proportional to 152.86, 228.84 and 104.20
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Solution
The fourth proportional to 152.86, 228.84 and 104.20 is: 155.99
Step by Step Solution
- Step 1: Write the proportion equation
152.86 : 228.84 = 104.20 : x - Step 2: Convert to fraction form
152.86/228.84 = 104.20/x - Step 3: Cross multiply
152.86x = 228.84 × 104.20 - Step 4: Simplify right side
152.86x = 23,845.13 - Step 5: Solve for x
x = 23,845.13/152.86 - Step 6: Final answer
x = 155.99
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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.