Finding the Fourth Proportional to 210,474.32, 290,402.52 and 135,124.88
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Solution
The fourth proportional to 210,474.32, 290,402.52 and 135,124.88 is: 186,438.92
Step by Step Solution
- Step 1: Write the proportion equation
210,474.32 : 290,402.52 = 135,124.88 : x - Step 2: Convert to fraction form
210,474.32/290,402.52 = 135,124.88/x - Step 3: Cross multiply
210,474.32x = 290,402.52 × 135,124.88 - Step 4: Simplify right side
210,474.32x = 39,240,605,666.70 - Step 5: Solve for x
x = 39,240,605,666.70/210,474.32 - Step 6: Final answer
x = 186,438.92
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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.