Finding the Fourth Proportional to 316,402.76, 436,746.90 and 195,636.68
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Solution
The fourth proportional to 316,402.76, 436,746.90 and 195,636.68 is: 270,047.31
Step by Step Solution
- Step 1: Write the proportion equation
316,402.76 : 436,746.90 = 195,636.68 : x - Step 2: Convert to fraction form
316,402.76/436,746.90 = 195,636.68/x - Step 3: Cross multiply
316,402.76x = 436,746.90 × 195,636.68 - Step 4: Simplify right side
316,402.76x = 85,443,713,516.29 - Step 5: Solve for x
x = 85,443,713,516.29/316,402.76 - Step 6: Final answer
x = 270,047.31
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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.