Finding the Fourth Proportional to 135,507.21, 203,228.15 and 56,578.65
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Solution
The fourth proportional to 135,507.21, 203,228.15 and 56,578.65 is: 84,854.33
Step by Step Solution
- Step 1: Write the proportion equation
135,507.21 : 203,228.15 = 56,578.65 : x - Step 2: Convert to fraction form
135,507.21/203,228.15 = 56,578.65/x - Step 3: Cross multiply
135,507.21x = 203,228.15 × 56,578.65 - Step 4: Simplify right side
135,507.21x = 11,498,374,086.10 - Step 5: Solve for x
x = 11,498,374,086.10/135,507.21 - Step 6: Final answer
x = 84,854.33
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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.