Finding the Fourth Proportional to 279,130.11, 385,207.61 and 171,762.99
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Solution
The fourth proportional to 279,130.11, 385,207.61 and 171,762.99 is: 237,037.88
Step by Step Solution
- Step 1: Write the proportion equation
279,130.11 : 385,207.61 = 171,762.99 : x - Step 2: Convert to fraction form
279,130.11/385,207.61 = 171,762.99/x - Step 3: Cross multiply
279,130.11x = 385,207.61 × 171,762.99 - Step 4: Simplify right side
279,130.11x = 66,164,410,864.35 - Step 5: Solve for x
x = 66,164,410,864.35/279,130.11 - Step 6: Final answer
x = 237,037.88
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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.