Finding the Fourth Proportional to 291,295.70, 436,943.55 and 197,983.70
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Solution
The fourth proportional to 291,295.70, 436,943.55 and 197,983.70 is: 296,975.55
Step by Step Solution
- Step 1: Write the proportion equation
291,295.70 : 436,943.55 = 197,983.70 : x - Step 2: Convert to fraction form
291,295.70/436,943.55 = 197,983.70/x - Step 3: Cross multiply
291,295.70x = 436,943.55 × 197,983.70 - Step 4: Simplify right side
291,295.70x = 86,507,700,720.14 - Step 5: Solve for x
x = 86,507,700,720.14/291,295.70 - Step 6: Final answer
x = 296,975.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.