Finding the Fourth Proportional to 369,462.21, 509,863.51 and 216,463.79
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Solution
The fourth proportional to 369,462.21, 509,863.51 and 216,463.79 is: 298,723.35
Step by Step Solution
- Step 1: Write the proportion equation
369,462.21 : 509,863.51 = 216,463.79 : x - Step 2: Convert to fraction form
369,462.21/509,863.51 = 216,463.79/x - Step 3: Cross multiply
369,462.21x = 509,863.51 × 216,463.79 - Step 4: Simplify right side
369,462.21x = 110,366,989,302.54 - Step 5: Solve for x
x = 110,366,989,302.54/369,462.21 - Step 6: Final answer
x = 298,723.35
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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.