Finding the Fourth Proportional to 353.70, 530.58 and 93.70
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Solution
The fourth proportional to 353.70, 530.58 and 93.70 is: 140.55
Step by Step Solution
- Step 1: Write the proportion equation
353.70 : 530.58 = 93.70 : x - Step 2: Convert to fraction form
353.70/530.58 = 93.70/x - Step 3: Cross multiply
353.70x = 530.58 × 93.70 - Step 4: Simplify right side
353.70x = 49,714.02 - Step 5: Solve for x
x = 49,714.02/353.70 - Step 6: Final answer
x = 140.55
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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.