Finding the Fourth Proportional to 257,613.10, 386,420.64 and 107,748.26
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Solution
The fourth proportional to 257,613.10, 386,420.64 and 107,748.26 is: 161,622.81
Step by Step Solution
- Step 1: Write the proportion equation
257,613.10 : 386,420.64 = 107,748.26 : x - Step 2: Convert to fraction form
257,613.10/386,420.64 = 107,748.26/x - Step 3: Cross multiply
257,613.10x = 386,420.64 × 107,748.26 - Step 4: Simplify right side
257,613.10x = 41,636,152,823.66 - Step 5: Solve for x
x = 41,636,152,823.66/257,613.10 - Step 6: Final answer
x = 161,622.81
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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.