Finding the Fourth Proportional to 314,965.80, 472,448.70 and 115,219.80
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Solution
The fourth proportional to 314,965.80, 472,448.70 and 115,219.80 is: 172,829.70
Step by Step Solution
- Step 1: Write the proportion equation
314,965.80 : 472,448.70 = 115,219.80 : x - Step 2: Convert to fraction form
314,965.80/472,448.70 = 115,219.80/x - Step 3: Cross multiply
314,965.80x = 472,448.70 × 115,219.80 - Step 4: Simplify right side
314,965.80x = 54,435,444,724.26 - Step 5: Solve for x
x = 54,435,444,724.26/314,965.80 - Step 6: Final answer
x = 172,829.70
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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.