Finding the Fourth Proportional to 291,303.99, 436,979.70 and 80,941.95
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Solution
The fourth proportional to 291,303.99, 436,979.70 and 80,941.95 is: 121,419.51
Step by Step Solution
- Step 1: Write the proportion equation
291,303.99 : 436,979.70 = 80,941.95 : x - Step 2: Convert to fraction form
291,303.99/436,979.70 = 80,941.95/x - Step 3: Cross multiply
291,303.99x = 436,979.70 × 80,941.95 - Step 4: Simplify right side
291,303.99x = 35,369,989,028.42 - Step 5: Solve for x
x = 35,369,989,028.42/291,303.99 - Step 6: Final answer
x = 121,419.51
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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.