Finding the Fourth Proportional to 315,298.19, 435,124.57 and 179,356.09
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Solution
The fourth proportional to 315,298.19, 435,124.57 and 179,356.09 is: 247,518.84
Step by Step Solution
- Step 1: Write the proportion equation
315,298.19 : 435,124.57 = 179,356.09 : x - Step 2: Convert to fraction form
315,298.19/435,124.57 = 179,356.09/x - Step 3: Cross multiply
315,298.19x = 435,124.57 × 179,356.09 - Step 4: Simplify right side
315,298.19x = 78,042,241,538.13 - Step 5: Solve for x
x = 78,042,241,538.13/315,298.19 - Step 6: Final answer
x = 247,518.84
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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.