Finding the Fourth Proportional to 228.02, 312.99 and 202.91
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Solution
The fourth proportional to 228.02, 312.99 and 202.91 is: 278.52
Step by Step Solution
- Step 1: Write the proportion equation
228.02 : 312.99 = 202.91 : x - Step 2: Convert to fraction form
228.02/312.99 = 202.91/x - Step 3: Cross multiply
228.02x = 312.99 × 202.91 - Step 4: Simplify right side
228.02x = 63,508.80 - Step 5: Solve for x
x = 63,508.80/228.02 - Step 6: Final answer
x = 278.52
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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.