Finding the Fourth Proportional to 425.97, 638.99 and 152.06
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Solution
The fourth proportional to 425.97, 638.99 and 152.06 is: 228.09
Step by Step Solution
- Step 1: Write the proportion equation
425.97 : 638.99 = 152.06 : x - Step 2: Convert to fraction form
425.97/638.99 = 152.06/x - Step 3: Cross multiply
425.97x = 638.99 × 152.06 - Step 4: Simplify right side
425.97x = 97,160.86 - Step 5: Solve for x
x = 97,160.86/425.97 - Step 6: Final answer
x = 228.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.