Finding the Fourth Proportional to 228,143.79, 314,840.52 and 126,163.98
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Solution
The fourth proportional to 228,143.79, 314,840.52 and 126,163.98 is: 174,107.45
Step by Step Solution
- Step 1: Write the proportion equation
228,143.79 : 314,840.52 = 126,163.98 : x - Step 2: Convert to fraction form
228,143.79/314,840.52 = 126,163.98/x - Step 3: Cross multiply
228,143.79x = 314,840.52 × 126,163.98 - Step 4: Simplify right side
228,143.79x = 39,721,533,068.47 - Step 5: Solve for x
x = 39,721,533,068.47/228,143.79 - Step 6: Final answer
x = 174,107.45
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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.