Finding the Fourth Proportional to 489.84, 675.99 and 358.62
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Solution
The fourth proportional to 489.84, 675.99 and 358.62 is: 494.90
Step by Step Solution
- Step 1: Write the proportion equation
489.84 : 675.99 = 358.62 : x - Step 2: Convert to fraction form
489.84/675.99 = 358.62/x - Step 3: Cross multiply
489.84x = 675.99 × 358.62 - Step 4: Simplify right side
489.84x = 242,423.53 - Step 5: Solve for x
x = 242,423.53/489.84 - Step 6: Final answer
x = 494.90
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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.