Finding the Fourth Proportional to 318,777.58, 477,807.53 and 139,014.28
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Solution
The fourth proportional to 318,777.58, 477,807.53 and 139,014.28 is: 208,364.94
Step by Step Solution
- Step 1: Write the proportion equation
318,777.58 : 477,807.53 = 139,014.28 : x - Step 2: Convert to fraction form
318,777.58/477,807.53 = 139,014.28/x - Step 3: Cross multiply
318,777.58x = 477,807.53 × 139,014.28 - Step 4: Simplify right side
318,777.58x = 66,422,069,761.53 - Step 5: Solve for x
x = 66,422,069,761.53/318,777.58 - Step 6: Final answer
x = 208,364.94
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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.