Finding the Fourth Proportional to 316,532.28, 436,820.04 and 173,290.08
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Solution
The fourth proportional to 316,532.28, 436,820.04 and 173,290.08 is: 239,143.32
Step by Step Solution
- Step 1: Write the proportion equation
316,532.28 : 436,820.04 = 173,290.08 : x - Step 2: Convert to fraction form
316,532.28/436,820.04 = 173,290.08/x - Step 3: Cross multiply
316,532.28x = 436,820.04 × 173,290.08 - Step 4: Simplify right side
316,532.28x = 75,696,579,677.20 - Step 5: Solve for x
x = 75,696,579,677.20/316,532.28 - Step 6: Final answer
x = 239,143.32
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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.