Finding the Fourth Proportional to 228,736.06, 315,655.80 and 128,134.06
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Solution
The fourth proportional to 228,736.06, 315,655.80 and 128,134.06 is: 176,825.02
Step by Step Solution
- Step 1: Write the proportion equation
228,736.06 : 315,655.80 = 128,134.06 : x - Step 2: Convert to fraction form
228,736.06/315,655.80 = 128,134.06/x - Step 3: Cross multiply
228,736.06x = 315,655.80 × 128,134.06 - Step 4: Simplify right side
228,736.06x = 40,446,259,216.55 - Step 5: Solve for x
x = 40,446,259,216.55/228,736.06 - Step 6: Final answer
x = 176,825.02
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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.