Finding the Fourth Proportional to 316,097.94, 474,147.27 and 129,109.44
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Solution
The fourth proportional to 316,097.94, 474,147.27 and 129,109.44 is: 193,664.31
Step by Step Solution
- Step 1: Write the proportion equation
316,097.94 : 474,147.27 = 129,109.44 : x - Step 2: Convert to fraction form
316,097.94/474,147.27 = 129,109.44/x - Step 3: Cross multiply
316,097.94x = 474,147.27 × 129,109.44 - Step 4: Simplify right side
316,097.94x = 61,216,888,507.23 - Step 5: Solve for x
x = 61,216,888,507.23/316,097.94 - Step 6: Final answer
x = 193,664.31
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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.