Finding the Fourth Proportional to 155,576.08, 214,631.10 and 115,388.74
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Solution
The fourth proportional to 155,576.08, 214,631.10 and 115,388.74 is: 159,189.07
Step by Step Solution
- Step 1: Write the proportion equation
155,576.08 : 214,631.10 = 115,388.74 : x - Step 2: Convert to fraction form
155,576.08/214,631.10 = 115,388.74/x - Step 3: Cross multiply
155,576.08x = 214,631.10 × 115,388.74 - Step 4: Simplify right side
155,576.08x = 24,766,012,193.81 - Step 5: Solve for x
x = 24,766,012,193.81/155,576.08 - Step 6: Final answer
x = 159,189.07
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1.5x scale
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.