Finding the Fourth Proportional to 291,955.75, 402,899.48 and 157,819.75
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Solution
The fourth proportional to 291,955.75, 402,899.48 and 157,819.75 is: 217,791.55
Step by Step Solution
- Step 1: Write the proportion equation
291,955.75 : 402,899.48 = 157,819.75 : x - Step 2: Convert to fraction form
291,955.75/402,899.48 = 157,819.75/x - Step 3: Cross multiply
291,955.75x = 402,899.48 × 157,819.75 - Step 4: Simplify right side
291,955.75x = 63,585,495,208.73 - Step 5: Solve for x
x = 63,585,495,208.73/291,955.75 - Step 6: Final answer
x = 217,791.55
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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.