Finding the Fourth Proportional to 210,913.92, 291,060.68 and 115,419.78
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Solution
The fourth proportional to 210,913.92, 291,060.68 and 115,419.78 is: 159,279.00
Step by Step Solution
- Step 1: Write the proportion equation
210,913.92 : 291,060.68 = 115,419.78 : x - Step 2: Convert to fraction form
210,913.92/291,060.68 = 115,419.78/x - Step 3: Cross multiply
210,913.92x = 291,060.68 × 115,419.78 - Step 4: Simplify right side
210,913.92x = 33,594,159,075.15 - Step 5: Solve for x
x = 33,594,159,075.15/210,913.92 - Step 6: Final answer
x = 159,279.00
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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.