Finding the Fourth Proportional to 368.99, 509.07 and 221.67
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Solution
The fourth proportional to 368.99, 509.07 and 221.67 is: 305.82
Step by Step Solution
- Step 1: Write the proportion equation
368.99 : 509.07 = 221.67 : x - Step 2: Convert to fraction form
368.99/509.07 = 221.67/x - Step 3: Cross multiply
368.99x = 509.07 × 221.67 - Step 4: Simplify right side
368.99x = 112,845.55 - Step 5: Solve for x
x = 112,845.55/368.99 - Step 6: Final answer
x = 305.82
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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.