Finding the Fourth Proportional to 425.88, 587.93 and 278.74
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Solution
The fourth proportional to 425.88, 587.93 and 278.74 is: 384.80
Step by Step Solution
- Step 1: Write the proportion equation
425.88 : 587.93 = 278.74 : x - Step 2: Convert to fraction form
425.88/587.93 = 278.74/x - Step 3: Cross multiply
425.88x = 587.93 × 278.74 - Step 4: Simplify right side
425.88x = 163,879.26 - Step 5: Solve for x
x = 163,879.26/425.88 - Step 6: Final answer
x = 384.80
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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.