Finding the Fourth Proportional to 313,641.13, 432,827.80 and 177,672.17
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Solution
The fourth proportional to 313,641.13, 432,827.80 and 177,672.17 is: 245,189.32
Step by Step Solution
- Step 1: Write the proportion equation
313,641.13 : 432,827.80 = 177,672.17 : x - Step 2: Convert to fraction form
313,641.13/432,827.80 = 177,672.17/x - Step 3: Cross multiply
313,641.13x = 432,827.80 × 177,672.17 - Step 4: Simplify right side
313,641.13x = 76,901,454,462.33 - Step 5: Solve for x
x = 76,901,454,462.33/313,641.13 - Step 6: Final answer
x = 245,189.32
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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.