Finding the Fourth Proportional to 210,497.08, 290,490.15 and 115,009.69
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Solution
The fourth proportional to 210,497.08, 290,490.15 and 115,009.69 is: 158,715.66
Step by Step Solution
- Step 1: Write the proportion equation
210,497.08 : 290,490.15 = 115,009.69 : x - Step 2: Convert to fraction form
210,497.08/290,490.15 = 115,009.69/x - Step 3: Cross multiply
210,497.08x = 290,490.15 × 115,009.69 - Step 4: Simplify right side
210,497.08x = 33,409,182,099.55 - Step 5: Solve for x
x = 33,409,182,099.55/210,497.08 - Step 6: Final answer
x = 158,715.66
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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.