Finding the Fourth Proportional to 395,921.41, 546,374.35 and 214,636.19
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Solution
The fourth proportional to 395,921.41, 546,374.35 and 214,636.19 is: 296,199.47
Step by Step Solution
- Step 1: Write the proportion equation
395,921.41 : 546,374.35 = 214,636.19 : x - Step 2: Convert to fraction form
395,921.41/546,374.35 = 214,636.19/x - Step 3: Cross multiply
395,921.41x = 546,374.35 × 214,636.19 - Step 4: Simplify right side
395,921.41x = 117,271,709,627.07 - Step 5: Solve for x
x = 117,271,709,627.07/395,921.41 - Step 6: Final answer
x = 296,199.47
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1.5x scale
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.