Finding the Fourth Proportional to 313,470.24, 432,721.34 and 211,633.63
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Solution
The fourth proportional to 313,470.24, 432,721.34 and 211,633.63 is: 292,143.80
Step by Step Solution
- Step 1: Write the proportion equation
313,470.24 : 432,721.34 = 211,633.63 : x - Step 2: Convert to fraction form
313,470.24/432,721.34 = 211,633.63/x - Step 3: Cross multiply
313,470.24x = 432,721.34 × 211,633.63 - Step 4: Simplify right side
313,470.24x = 91,578,386,616.32 - Step 5: Solve for x
x = 91,578,386,616.32/313,470.24 - Step 6: Final answer
x = 292,143.80
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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.