Finding the Fourth Proportional to 162.95, 244.40 and 86.00
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Solution
The fourth proportional to 162.95, 244.40 and 86.00 is: 128.99
Step by Step Solution
- Step 1: Write the proportion equation
162.95 : 244.40 = 86.00 : x - Step 2: Convert to fraction form
162.95/244.40 = 86.00/x - Step 3: Cross multiply
162.95x = 244.40 × 86.00 - Step 4: Simplify right side
162.95x = 21,018.58 - Step 5: Solve for x
x = 21,018.58/162.95 - Step 6: Final answer
x = 128.99
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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.