Finding the Fourth Proportional to 316,108.79, 436,270.08 and 207,304.68
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Solution
The fourth proportional to 316,108.79, 436,270.08 and 207,304.68 is: 286,106.66
Step by Step Solution
- Step 1: Write the proportion equation
316,108.79 : 436,270.08 = 207,304.68 : x - Step 2: Convert to fraction form
316,108.79/436,270.08 = 207,304.68/x - Step 3: Cross multiply
316,108.79x = 436,270.08 × 207,304.68 - Step 4: Simplify right side
316,108.79x = 90,440,829,327.97 - Step 5: Solve for x
x = 90,440,829,327.97/316,108.79 - Step 6: Final answer
x = 286,106.66
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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.