Finding the Fourth Proportional to 307,495.98, 461,263.41 and 129,979.62
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Solution
The fourth proportional to 307,495.98, 461,263.41 and 129,979.62 is: 194,977.65
Step by Step Solution
- Step 1: Write the proportion equation
307,495.98 : 461,263.41 = 129,979.62 : x - Step 2: Convert to fraction form
307,495.98/461,263.41 = 129,979.62/x - Step 3: Cross multiply
307,495.98x = 461,263.41 × 129,979.62 - Step 4: Simplify right side
307,495.98x = 59,954,842,751.70 - Step 5: Solve for x
x = 59,954,842,751.70/307,495.98 - Step 6: Final answer
x = 194,977.65
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1.5x scale
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.