Finding the Fourth Proportional to 258,790.92, 357,130.74 and 145,613.68
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Solution
The fourth proportional to 258,790.92, 357,130.74 and 145,613.68 is: 200,946.47
Step by Step Solution
- Step 1: Write the proportion equation
258,790.92 : 357,130.74 = 145,613.68 : x - Step 2: Convert to fraction form
258,790.92/357,130.74 = 145,613.68/x - Step 3: Cross multiply
258,790.92x = 357,130.74 × 145,613.68 - Step 4: Simplify right side
258,790.92x = 52,003,121,292.52 - Step 5: Solve for x
x = 52,003,121,292.52/258,790.92 - Step 6: Final answer
x = 200,946.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.