Finding the Fourth Proportional to 313,143.50, 432,490.08 and 210,990.08
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Solution
The fourth proportional to 313,143.50, 432,490.08 and 210,990.08 is: 291,403.52
Step by Step Solution
- Step 1: Write the proportion equation
313,143.50 : 432,490.08 = 210,990.08 : x - Step 2: Convert to fraction form
313,143.50/432,490.08 = 210,990.08/x - Step 3: Cross multiply
313,143.50x = 432,490.08 × 210,990.08 - Step 4: Simplify right side
313,143.50x = 91,251,118,450.84 - Step 5: Solve for x
x = 91,251,118,450.84/313,143.50 - Step 6: Final answer
x = 291,403.52
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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.