Finding the Fourth Proportional to 291,715.50, 402,567.75 and 157,579.50
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Solution
The fourth proportional to 291,715.50, 402,567.75 and 157,579.50 is: 217,459.90
Step by Step Solution
- Step 1: Write the proportion equation
291,715.50 : 402,567.75 = 157,579.50 : x - Step 2: Convert to fraction form
291,715.50/402,567.75 = 157,579.50/x - Step 3: Cross multiply
291,715.50x = 402,567.75 × 157,579.50 - Step 4: Simplify right side
291,715.50x = 63,436,424,761.13 - Step 5: Solve for x
x = 63,436,424,761.13/291,715.50 - Step 6: Final answer
x = 217,459.90
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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.