Finding the Fourth Proportional to 370,809.58, 511,721.15 and 217,854.14
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Solution
The fourth proportional to 370,809.58, 511,721.15 and 217,854.14 is: 300,641.02
Step by Step Solution
- Step 1: Write the proportion equation
370,809.58 : 511,721.15 = 217,854.14 : x - Step 2: Convert to fraction form
370,809.58/511,721.15 = 217,854.14/x - Step 3: Cross multiply
370,809.58x = 511,721.15 × 217,854.14 - Step 4: Simplify right side
370,809.58x = 111,480,571,053.06 - Step 5: Solve for x
x = 111,480,571,053.06/370,809.58 - Step 6: Final answer
x = 300,641.02
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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.