Finding the Fourth Proportional to 210,889.08, 291,026.92 and 115,395.78
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Solution
The fourth proportional to 210,889.08, 291,026.92 and 115,395.78 is: 159,246.17
Step by Step Solution
- Step 1: Write the proportion equation
210,889.08 : 291,026.92 = 115,395.78 : x - Step 2: Convert to fraction form
210,889.08/291,026.92 = 115,395.78/x - Step 3: Cross multiply
210,889.08x = 291,026.92 × 115,395.78 - Step 4: Simplify right side
210,889.08x = 33,583,278,434.40 - Step 5: Solve for x
x = 33,583,278,434.40/210,889.08 - Step 6: Final answer
x = 159,246.17
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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.