Finding the Fourth Proportional to 355.02, 489.99 and 207.73
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Solution
The fourth proportional to 355.02, 489.99 and 207.73 is: 286.70
Step by Step Solution
- Step 1: Write the proportion equation
355.02 : 489.99 = 207.73 : x - Step 2: Convert to fraction form
355.02/489.99 = 207.73/x - Step 3: Cross multiply
355.02x = 489.99 × 207.73 - Step 4: Simplify right side
355.02x = 101,785.62 - Step 5: Solve for x
x = 101,785.62/355.02 - Step 6: Final answer
x = 286.70
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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.