Finding the Fourth Proportional to 375,465.12, 518,138.76 and 203,379.09
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Solution
The fourth proportional to 375,465.12, 518,138.76 and 203,379.09 is: 280,661.46
Step by Step Solution
- Step 1: Write the proportion equation
375,465.12 : 518,138.76 = 203,379.09 : x - Step 2: Convert to fraction form
375,465.12/518,138.76 = 203,379.09/x - Step 3: Cross multiply
375,465.12x = 518,138.76 × 203,379.09 - Step 4: Simplify right side
375,465.12x = 105,378,589,502.53 - Step 5: Solve for x
x = 105,378,589,502.53/375,465.12 - Step 6: Final answer
x = 280,661.46
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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.