Finding the Fourth Proportional to 316,586.80, 474,805.68 and 91,887.94
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Solution
The fourth proportional to 316,586.80, 474,805.68 and 91,887.94 is: 137,810.28
Step by Step Solution
- Step 1: Write the proportion equation
316,586.80 : 474,805.68 = 91,887.94 : x - Step 2: Convert to fraction form
316,586.80/474,805.68 = 91,887.94/x - Step 3: Cross multiply
316,586.80x = 474,805.68 × 91,887.94 - Step 4: Simplify right side
316,586.80x = 43,628,915,835.50 - Step 5: Solve for x
x = 43,628,915,835.50/316,586.80 - Step 6: Final answer
x = 137,810.28
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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.