Finding the Fourth Proportional to 316,445.76, 436,695.68 and 173,214.88
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Solution
The fourth proportional to 316,445.76, 436,695.68 and 173,214.88 is: 239,036.83
Step by Step Solution
- Step 1: Write the proportion equation
316,445.76 : 436,695.68 = 173,214.88 : x - Step 2: Convert to fraction form
316,445.76/436,695.68 = 173,214.88/x - Step 3: Cross multiply
316,445.76x = 436,695.68 × 173,214.88 - Step 4: Simplify right side
316,445.76x = 75,642,189,807.72 - Step 5: Solve for x
x = 75,642,189,807.72/316,445.76 - Step 6: Final answer
x = 239,036.83
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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.