Finding the Fourth Proportional to 425.99, 587.87 and 257.91
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Solution
The fourth proportional to 425.99, 587.87 and 257.91 is: 355.92
Step by Step Solution
- Step 1: Write the proportion equation
425.99 : 587.87 = 257.91 : x - Step 2: Convert to fraction form
425.99/587.87 = 257.91/x - Step 3: Cross multiply
425.99x = 587.87 × 257.91 - Step 4: Simplify right side
425.99x = 151,616.26 - Step 5: Solve for x
x = 151,616.26/425.99 - Step 6: Final answer
x = 355.92
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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.