Finding the Fourth Proportional to 286,873.28, 395,882.93 and 157,808.97
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Solution
The fourth proportional to 286,873.28, 395,882.93 and 157,808.97 is: 217,775.17
Step by Step Solution
- Step 1: Write the proportion equation
286,873.28 : 395,882.93 = 157,808.97 : x - Step 2: Convert to fraction form
286,873.28/395,882.93 = 157,808.97/x - Step 3: Cross multiply
286,873.28x = 395,882.93 × 157,808.97 - Step 4: Simplify right side
286,873.28x = 62,473,877,423.88 - Step 5: Solve for x
x = 62,473,877,423.88/286,873.28 - Step 6: Final answer
x = 217,775.17
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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.