Finding the Fourth Proportional to 369,464.21, 509,866.28 and 216,465.80
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Solution
The fourth proportional to 369,464.21, 509,866.28 and 216,465.80 is: 298,726.12
Step by Step Solution
- Step 1: Write the proportion equation
369,464.21 : 509,866.28 = 216,465.80 : x - Step 2: Convert to fraction form
369,464.21/509,866.28 = 216,465.80/x - Step 3: Cross multiply
369,464.21x = 509,866.28 × 216,465.80 - Step 4: Simplify right side
369,464.21x = 110,368,608,561.56 - Step 5: Solve for x
x = 110,368,608,561.56/369,464.21 - Step 6: Final answer
x = 298,726.12
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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.