Finding the Fourth Proportional to 212,840.06, 319,260.08 and 72,599.90
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Solution
The fourth proportional to 212,840.06, 319,260.08 and 72,599.90 is: 108,899.84
Step by Step Solution
- Step 1: Write the proportion equation
212,840.06 : 319,260.08 = 72,599.90 : x - Step 2: Convert to fraction form
212,840.06/319,260.08 = 72,599.90/x - Step 3: Cross multiply
212,840.06x = 319,260.08 × 72,599.90 - Step 4: Simplify right side
212,840.06x = 23,178,248,467.19 - Step 5: Solve for x
x = 23,178,248,467.19/212,840.06 - Step 6: Final answer
x = 108,899.84
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.