Finding the Fourth Proportional to 279,903.91, 386,029.70 and 236,509.07
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Solution
The fourth proportional to 279,903.91, 386,029.70 and 236,509.07 is: 326,181.67
Step by Step Solution
- Step 1: Write the proportion equation
279,903.91 : 386,029.70 = 236,509.07 : x - Step 2: Convert to fraction form
279,903.91/386,029.70 = 236,509.07/x - Step 3: Cross multiply
279,903.91x = 386,029.70 × 236,509.07 - Step 4: Simplify right side
279,903.91x = 91,299,523,409.23 - Step 5: Solve for x
x = 91,299,523,409.23/279,903.91 - Step 6: Final answer
x = 326,181.67
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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.