Finding the Fourth Proportional to 384,966.64, 577,549.62 and 118,721.28
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Solution
The fourth proportional to 384,966.64, 577,549.62 and 118,721.28 is: 178,112.65
Step by Step Solution
- Step 1: Write the proportion equation
384,966.64 : 577,549.62 = 118,721.28 : x - Step 2: Convert to fraction form
384,966.64/577,549.62 = 118,721.28/x - Step 3: Cross multiply
384,966.64x = 577,549.62 × 118,721.28 - Step 4: Simplify right side
384,966.64x = 68,567,430,149.91 - Step 5: Solve for x
x = 68,567,430,149.91/384,966.64 - Step 6: Final answer
x = 178,112.65
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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.