Finding the Fourth Proportional to 291,916.53, 402,843.65 and 157,780.53
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Solution
The fourth proportional to 291,916.53, 402,843.65 and 157,780.53 is: 217,736.50
Step by Step Solution
- Step 1: Write the proportion equation
291,916.53 : 402,843.65 = 157,780.53 : x - Step 2: Convert to fraction form
291,916.53/402,843.65 = 157,780.53/x - Step 3: Cross multiply
291,916.53x = 402,843.65 × 157,780.53 - Step 4: Simplify right side
291,916.53x = 63,560,883,815.23 - Step 5: Solve for x
x = 63,560,883,815.23/291,916.53 - Step 6: Final answer
x = 217,736.50
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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.