Finding the Fourth Proportional to 311,845.50, 430,347.99 and 174,030.30
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Solution
The fourth proportional to 311,845.50, 430,347.99 and 174,030.30 is: 240,162.48
Step by Step Solution
- Step 1: Write the proportion equation
311,845.50 : 430,347.99 = 174,030.30 : x - Step 2: Convert to fraction form
311,845.50/430,347.99 = 174,030.30/x - Step 3: Cross multiply
311,845.50x = 430,347.99 × 174,030.30 - Step 4: Simplify right side
311,845.50x = 74,893,589,804.10 - Step 5: Solve for x
x = 74,893,589,804.10/311,845.50 - Step 6: Final answer
x = 240,162.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.