Finding the Fourth Proportional to 210,526.68, 290,530.62 and 115,037.40
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Solution
The fourth proportional to 210,526.68, 290,530.62 and 115,037.40 is: 158,753.69
Step by Step Solution
- Step 1: Write the proportion equation
210,526.68 : 290,530.62 = 115,037.40 : x - Step 2: Convert to fraction form
210,526.68/290,530.62 = 115,037.40/x - Step 3: Cross multiply
210,526.68x = 290,530.62 × 115,037.40 - Step 4: Simplify right side
210,526.68x = 33,421,887,145.19 - Step 5: Solve for x
x = 33,421,887,145.19/210,526.68 - Step 6: Final answer
x = 158,753.69
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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.