Finding the Fourth Proportional to 291,135.04, 436,554.84 and 133,228.20
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Solution
The fourth proportional to 291,135.04, 436,554.84 and 133,228.20 is: 199,774.70
Step by Step Solution
- Step 1: Write the proportion equation
291,135.04 : 436,554.84 = 133,228.20 : x - Step 2: Convert to fraction form
291,135.04/436,554.84 = 133,228.20/x - Step 3: Cross multiply
291,135.04x = 436,554.84 × 133,228.20 - Step 4: Simplify right side
291,135.04x = 58,161,415,534.49 - Step 5: Solve for x
x = 58,161,415,534.49/291,135.04 - Step 6: Final answer
x = 199,774.70
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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.