Finding the Fourth Proportional to 397,417.16, 548,430.46 and 216,125.19
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Solution
The fourth proportional to 397,417.16, 548,430.46 and 216,125.19 is: 298,249.92
Step by Step Solution
- Step 1: Write the proportion equation
397,417.16 : 548,430.46 = 216,125.19 : x - Step 2: Convert to fraction form
397,417.16/548,430.46 = 216,125.19/x - Step 3: Cross multiply
397,417.16x = 548,430.46 × 216,125.19 - Step 4: Simplify right side
397,417.16x = 118,529,636,828.97 - Step 5: Solve for x
x = 118,529,636,828.97/397,417.16 - Step 6: Final answer
x = 298,249.92
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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.