Finding the Fourth Proportional to 210,545.12, 290,551.92 and 115,051.84
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Solution
The fourth proportional to 210,545.12, 290,551.92 and 115,051.84 is: 158,771.35
Step by Step Solution
- Step 1: Write the proportion equation
210,545.12 : 290,551.92 = 115,051.84 : x - Step 2: Convert to fraction form
210,545.12/290,551.92 = 115,051.84/x - Step 3: Cross multiply
210,545.12x = 290,551.92 × 115,051.84 - Step 4: Simplify right side
210,545.12x = 33,428,533,011.53 - Step 5: Solve for x
x = 33,428,533,011.53/210,545.12 - Step 6: Final answer
x = 158,771.35
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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.