Finding the Fourth Proportional to 190,840.08, 286,315.52 and 76,929.10
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Solution
The fourth proportional to 190,840.08, 286,315.52 and 76,929.10 is: 115,415.98
Step by Step Solution
- Step 1: Write the proportion equation
190,840.08 : 286,315.52 = 76,929.10 : x - Step 2: Convert to fraction form
190,840.08/286,315.52 = 76,929.10/x - Step 3: Cross multiply
190,840.08x = 286,315.52 × 76,929.10 - Step 4: Simplify right side
190,840.08x = 22,025,994,546.31 - Step 5: Solve for x
x = 22,025,994,546.31/190,840.08 - Step 6: Final answer
x = 115,415.98
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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.