Finding the Fourth Proportional to 370,686.21, 511,541.40 and 209,535.58
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Solution
The fourth proportional to 370,686.21, 511,541.40 and 209,535.58 is: 289,155.95
Step by Step Solution
- Step 1: Write the proportion equation
370,686.21 : 511,541.40 = 209,535.58 : x - Step 2: Convert to fraction form
370,686.21/511,541.40 = 209,535.58/x - Step 3: Cross multiply
370,686.21x = 511,541.40 × 209,535.58 - Step 4: Simplify right side
370,686.21x = 107,186,123,943.01 - Step 5: Solve for x
x = 107,186,123,943.01/370,686.21 - Step 6: Final answer
x = 289,155.95
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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.